{"title":"Apochromatic Telescopes","description":"\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [{\n    \"@type\": \"Question\",\n    \"name\": \"What type of telescope is an apochromatic telescope?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"Apochromatic Telescopes are a type of refracting telescope that have a better correction of chromatic and spherical aberration than the more common achromat lens.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"What is the difference between achromatic telescopes and apochromatic telescopes?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"Apochromatic telescopes will bring three different frequencies into on focal plane while achromatic telescopes bring two different frequencies to one focal plane.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"Are apochromatic telescopes good for astrophotography?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"Apochromatic telescopes are great for astrophotography because they bring three frequencies to light in comparison to achromatic telescopes meaning you will be able to capture more detail in your images.\"\n    }\n  }]\n}\n\u003c\/script\u003e\n\u003cp\u003eApochromatic Telescopes are a type of refracting telescope that have a better correction of chromatic and spherical aberration than the more common achromat lens. Shop OPT's wide selesction of apochromatic telescopes below!\u003c\/p\u003e\n\u003c!----- SUB DESCRIPTION -----\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!-- sub description --\u003e\n\u003cp\u003e\u003cspan\u003e The lenses in an apochromatic telescope will bring light of three different frequencies to a common focus. This should get you a much cleaner view of anything you're looking at in the night sky. If you plan to image with this type of telescope, you will need a field flattener or reducer-flattener. Doing so can get you incredibly crisp images.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"#blog_block\"\u003e\u003cspan\u003e\u003cspan\u003eLearn More\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e","products":[{"product_id":"takahashi-fs-60cb-fluorite-refractor-telescope","title":"Takahashi FS-60CB Fluorite Refractor Telescope","description":"\u003ccenter\u003e\n\u003ch2\u003eTakahashi FS-60CB - 2.36\" f\/5.9 Fluorite Refractor OTA\u003c\/h2\u003e\n\u003c\/center\u003eAre you looking for an extreme high quality refractor telescope to serve across a variety of purposes? Then look no more... Takahashi has your answer with the FS-60CB Fluorite Refractor. \u003cbr\u003e\u003cbr\u003e Offered up in compact package refractor telescope par excellence - created for the optical connoisseur. It begins with a combination of calcium fluorite crystal lens which are created in a laboratory environment, then hard coated for maximum light transmission. From there it's combined with fluorite crystal and low dispersion glass to offer up optical quality that surpasses any other extra-low dispersion glass refractor on the market. Thanks to Takahashi's controlled environment in crystal creation, absolutely precision can be achieved that cannot be rivaled by nature... And this precision shows in Takahashi's true apochromatic optical systems - and their virtually perfect color correction! \u003cbr\u003e\u003cbr\u003e Hard coated in a vacuum chamber for maximum light transmission and internally knife edge baffles means there's no stray light bouncing around either. Two-element, air spaced design means one less light robbing lens than a triplet system and there's no oil between lens to cloud with age. The color correction you see tonight through your Takahashi FS-60CB Flourite Refractor is the same color correction your can expect to see through your Takahashi FS-60 Fluorite Refractor for many, many years to come. It's an investment in optical quality... \u003cbr\u003e\u003cbr\u003e Weighing in at less than three pounds, you'll find the Takahashi FS-60CB Fluorite Refractor is perfect for all your needs. The rack and pinion focuser has large, easy to use knobs and optical tube has a mounting area for an optional finderscope. The Takahashi FS-60CB Flourite Refractor comes complete with a non-marring compression ring fitting 1.25\" focuser and at only 17\" long with the dew shield in place offers up the ultimate in portability. For astrophotographers, the f\/5.9 focal ratio, 355mm focal length, and 5.0 x 7.0 photo field makes for one sweet wide field scope, while visual observers will appreciate the FS-60CB's magnitude 10.7 light grasp and 1.95 arc seconds of resolution! \u003cbr\u003e\u003cbr\u003e Don't settle for second best... \u003cbr\u003e\u003cbr\u003e Takahashi Product Number: TK-TSK06010","brand":"Takahashi","offers":[{"title":"Default Title","offer_id":44860725194,"sku":"TK-TSK06010","price":1040.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/5a449c04d8d6b3d6e3833e7d4eebe36b.jpg?v=1553302290"},{"product_id":"takahashi-toa-130ns-5-ortho-apo-refractor-2-7-focuser","title":"Takahashi TOA-130NS Triplet APO Double ED Refractor - 2.7\" Focuser","description":"\u003cp\u003eThe Takahashi TOA-130 is the first of Takahashi's newest optical design: The Ortho-Apochromat. This 21st century innovation employs a newly designed triplet using special elements to produce the highest order of color correction. Orthoscopic means perfected visually and Apochromatic means you're free from those strange violet glows which often accompany bright stars or planets. Thanks to the ingenious design of layering an FPL-53 Extra-low Dispersion glass element between two extreme quality crown and flint elements - perfection ensues. And what's more, it's air spaced, so there's no oil between the elements to leak or become opaque with age. The lens cells are durably constructed to withstand transport - yet are fully able to be collimated should the owner wish to make adjustments. With 1\/12th wave accuracy and an airy-disc Strehl ratio of 0.992, the optics on the Takahashi TOA-130NS Ortho-APO are as near to perfection as you can get!\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e The Takahashi TOA-130 Ortho-APO is a dream come true for those who want to use a medium format camera. It includes a deluxe 2.7\" focuser. The 2.7\" focuser will produce a usable 40mm diameter image circle for virtually unvignetted 35mm prime focus photography and a large thumbscrew locks the focuser tube in place without image shift. But that's not all. The focuser itself offers a generous 222.5mm of backfocus to allow the use of additional accessories, like adding on color filter wheels, etc. What's more, the focuser itself offers \"no slip\" stability with dual knobs for ease of use and 2\" threaded eyepiece\/accessory holder with 1.25\" compression ring eyepiece holder also supplied - along with Scopeguard finder quick-release. There is a \u003ca href=\"http:\/\/static.shoplightspeed.com\/shops\/603005\/files\/002050148\/toa130sphotovisualsystemchart.pdf?_ga=2.254387272.1587592109.1495127529-1353426823.1495121027\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cstrong\u003eSystem Chart\u003c\/strong\u003e \u003c\/a\u003eavailable for planning out your accessories for use with this splendid telescope.\u003cbr\u003e\u003cbr\u003e The Takahashi TOA-130 Refractor is perfect for visual, CCD and classic astrophotography. The f\/7.7 focal ratio with a 1000mm focal length is long enough (using the optional LE-ED 2.8mm Takahashi ocular, for instance) for high magnification observations of the Moon and planets and yet will produce a 2.5 field at 20x when used with the optional Takahashi flat field LE-50 2 \" ocular. The high order of color correction of the Ortho-Apochromat Series produces images with saturated color and, thanks to the numerous knife-edged baffles, it also displays an image with amazing contrast - all packaged in a short, 32\" tube with the dew preventive lens shade retracted that weighs only 22 pounds. \u003cbr\u003e\u003cbr\u003e Takahashi quality... Through and through! \u003cbr\u003e\u003cbr\u003e Takahashi Product Number: \u003cb\u003eTSA0130\u003c\/b\u003e \u003cbr\u003e\u003cbr\u003e \u003ci\u003e\u003cb\u003e Important Note: \u003c\/b\u003eTakahashi America requires that their telescope optical tube assemblies be shipped via 2nd Day Air or faster in order for the full warranty to be in force. Please make sure you choose the appropriate shipping method in your shopping cart or, if you speak to an OPT associate, request 2nd Day Air or faster. If you are purchasing a telescope and mount package or any accessories to accompany an OTA, please \u003ca href=\"mailto:internetsales@optcorp.com\"\u003econtact OPT\u003c\/a\u003e for a shipping quote, since only the OTA is required to ship second day air but all other products can be shipped separately via any other available shipping method. Thank you! \u003c\/i\u003e\u003c\/p\u003e","brand":"Takahashi","offers":[{"title":"Default Title","offer_id":44860751818,"sku":"TK-TOK13010","price":7200.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/082dfbc2d2b1fdc0aa6c6d26251ef932.jpg?v=1553308868"},{"product_id":"takahashi-toa-130nfb-refractor-telescope","title":"Takahashi TOA 130NFB Double ED Triplet Refractor Telescope","description":"\u003ch2 style=\"text-align: center;\"\u003e\u003cstrong\u003eTakahashi TOA-130NFB - 5.1\" f\/7.7 Ortho-APO Refractor Telescope\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe Takahashi TOA 130NFB is the first of Takahashi's newest optical design: The Ortho-Apochromat. This 21st century innovation employs a newly designed triplet using special elements to produce the highest order of color correction. Orthoscopic means perfected visually and Apochromatic means you're free from those strange violet glows which often accompany bright stars or planets. Thanks to the ingenious design of layering an FPL-53 Extra-low Dispersion glass element between two extreme quality crown and flint elements - perfection ensues. And what's more, it's air spaced, so there's no oil between the elements to leak or become opaque with age. The lens cells are durably constructed to withstand transport - yet are fully able to be collimated should the owner wish to make adjustments. With 1\/12th wave accuracy and an airy-disc Strehl ratio of 0.992, the optics on the Takahashi TOA 130NFB Ortho-APO are as near to perfection as you can get!\u003c\/p\u003e\n\u003cp\u003eThe Takahashi TOA-130NFB Ortho-APO is a dream come true for those who want to use a medium format camera. It includes a deluxe 4\" focuser with built in camera angle adjuster. The camera angle adjuster enables the observer or astrophotographer to turn the ocular or camera 360 degrees to better view or frame an object to be photographed. The 4\" focuser, coupled with the optional dedicated flattener, will produce a fully illuminated 70mm circle with a usable 92mm diameter. But that's not all. The focuser itself offers a generous 274.5mm of backfocus to allow the use of additional accessories, like adding on color filter wheels, etc. What's more, the focuser itself offers \"no slip\" stability with dual knobs for ease of use and 2\" threaded eyepiece\/accessory holder with 1.25\" compression ring eyepiece holder also supplied - along with Scopeguard finder quick-release. \u003cbr\u003e\u003cbr\u003e The Takahashi TOA-130 Refractor is perfect for visual, CCD and classic astrophotography. The f\/7.7 focal ratio with a 1000mm focal length is long enough (using the optional LE-ED 2.8mm Takahashi ocular, for instance) for high magnification observations of the Moon and planets and yet will produce a 2.5 field at 20x when used with the optional Takahashi flat field LE-50 2 \" ocular. The high order of color correction of the Ortho-Apochromat Series produces images with saturated color and, thanks to the numerous knife-edged baffles, it also displays an image with amazing contrast - all packaged in a short, 32\" tube with the dew preventive lens shade retracted that weighs only 22 pounds. \u003cbr\u003e\u003cbr\u003e Takahashi quality... Through and through! \u003cbr\u003e\u003cbr\u003e Takahashi Product Number: \u003cb\u003eTSA0131\u003c\/b\u003e \u003cbr\u003e\u003cbr\u003e \u003cb\u003e Important Note: Takahashi America requires that their telescope optical tube assemblies be shipped via 2nd Day Air or faster in order for the full warranty to be in force. Please make sure you choose the appropriate shipping method in your shopping cart or, if you speak to an OPT associate, request 2nd Day Air or faster. If you are purchasing a telescope and mount package or any accessories to accompany an OTA, please \u003ca href=\"mailto:internetsales@optcorp.com\"\u003econtact OPT\u003c\/a\u003e for a shipping quote, since only the OTA is required to ship second day air but all other products can be shipped separately via any other available shipping method. Thank you! \u003c\/b\u003e\u003c\/p\u003e","brand":"Takahashi","offers":[{"title":"Default Title","offer_id":44860775114,"sku":"TK-TOK13310","price":8110.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/14de3ae7f7a49deb4e793703a951c17a.jpg?v=1553309062"},{"product_id":"tele-vue-tv60-apo-telescope-ota","title":"Tele Vue TV60 APO Telescope OTA","description":"Are you looking for the perfect small refractor telescope? Then look no further than the Televue TV60 Doublet Refractor. Exquisitely crafted from its anodized all-aluminum exterior right down to its incredible Nagler optics the TeleVue TV60 will respond like no other 60mm aperture refractor you've ever dreamed of. \u003cbr\u003e\u003cbr\u003e This high performance 2.4\", 360mm f\/6 APO doublet gives a maximum true field of 4.3, which makes it superior for both terrestrial and astronomical use. Standard features include a 2-stage 1.25\" focuser which accepts in-line porro prism, 45 deg erectors, or 60\u003cspan\u003e deg\u003c\/span\u003e and 90\u003cspan\u003e deg \u003c\/span\u003e diagonals... and does it with a quick-focus drawtube and tunes it with a helical fine focus. The apochromatic design coupled with well above standard multi-coatings mean outstanding color correction, while precision internal machining combined with a sliding captive dew shield means no stray light bouncing around to disturb the perfect view. \u003cbr\u003e\u003cbr\u003e At only 10\" long (254mm) and weighing in at around 3 pounds (1.4 kg), the Televue TV 60 is a portable piece of perfection. The TV60 includes an adjustable dovetail balancing bar which fits all camera tripods and will instantly become a favorite of those who seek a great telephoto lens and imaging capability for digital cameras - great for birding and nature photography - as well as long distance spotting. But, don't stop there, because the TV60 likes to stay up late and party, too. The Televue TV60 Doublet Refractor will also give outstanding performance as a small astronomical telescope and combined with an optional Nagler Zoom eyepiece will give incredible lunar and planetary views.\n\u003ccenter\u003e\n\u003cp style=\"text-align: left;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003eTelevue TV60 Doublet Refractor Features...\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003c\/h2\u003e\n\u003c\/center\u003e\n\u003cul\u003e\n\u003cli\u003eAdjustable dovetail balancing bar fits all camera tripods, Televue mounts and NEW mounting bracket for SCTs.\u003c\/li\u003e\n\u003cli\u003eExtremely portable size and weight - optional padding carrying case is available.\u003c\/li\u003e\n\u003cli\u003eTested to perform to theoretical perfection for high power observations.\u003c\/li\u003e\n\u003cli\u003eGreat for terrestrial and astronomical use.\u003c\/li\u003e\n\u003cli\u003eFive Year Manufacturer Warranty.\u003c\/li\u003e\n\u003c\/ul\u003e\nTelevue Product Number: \u003cb\u003eTVO-2460\u003c\/b\u003e\n\u003cp\u003eAll Televue products are available to ship world-wide from OPT, and are covered by a Lifetime Limited Product Warranty! Always be sure to save your original packaging materials should you need to return any Televue product for warranty or repair.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Tele Vue","offers":[{"title":"Default Title","offer_id":44862185802,"sku":"TE-TVO-2460","price":867.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/d4317ceb59bbaad8a2b54f720391c56b.jpg?v=1553308990"},{"product_id":"takahashi-toa-150b-refractor-telescope-heavy-duty-4-focuser","title":"Takahashi TOA-150B Double ED Triplet Refractor Telescope - Heavy-Duty 4\" Focuser","description":"\u003cp\u003eThe Takahashi TOA-150B employs a newly designed triplet using special elements to produce the highest order of color correction. Orthoscopic means perfected visually and Apochromatic means you're free from those strange violet glows which often accompany bright stars or planets. Thanks to the ingenious design of layering an FPL-53 Extra-low Dispersion glass element between two extreme quality crown and flint elements - perfection ensues. And what's more, it's air spaced, so there's no oil between the elements to leak or become opaque with age. The lens cells are durably constructed to withstand transport - yet are fully able to be collimated should the owner wish to make adjustments. With 1\/12th wave accuracy and an airy-disc Strehl ratio of 0.992, the optics on the Takahashi TOA-150B Ortho-APO are as near to perfection as you can get!\u003c\/p\u003e\n\u003cp\u003eThe Takahashi TOA-150B Ortho-APO is a dream come true for those who want to use a medium format camera. It includes a newly designed 4\" focuser that uses a long stroke linear bearing designed to handle heavy instrument packages with ease. LIke the FSQ-106ED, the focuser on the TOA-150B uses a trigger lock focus lock and has a new pinion assembly. A camera angle adjuster is included, and enables the observer or astrophotographer to turn the ocular or camera 360 degrees to better view or frame an object to be photographed. The 4\" focuser, coupled with the optional dedicated flattener, will produce a fully usable 90mm diameter image circle. But that's not all. The focuser itself offers a generous 225mm of backfocus to allow the use of additional accessories, like adding on color filter wheels, etc. What's more, the focuser itself offers \"no slip\" stability with dual knobs for ease of use, 10:1 Micro Edge Focuser and 2\" threaded eyepiece\/accessory holder with 1.25\" compression ring eyepiece holder also supplied.\u003c\/p\u003e\n\u003cp\u003eThe Takahashi TOA-150B Refractor is perfect for visual, CCD and classic astrophotography. The f\/7.3 focal ratio with a 1100mm focal length is long enough for high magnification observations of the Moon and attaching the optional Extender TOA converts the TOA-150 APO into a f\/11.68 planetary instrument capable of very high magnification. You'll get images which display.the high order of color correction of the Ortho-Apochromat Series without saturated color and, thanks to the numerous knife-edged baffles, it displays amazing contrast - all packaged in a short, 38\" tube with the dew preventive lens shade retracted that weighs just under 43 pounds. It even has an optional convenient handle at the rear - located just before the focuser - which will allow for an easy grip for carrying and setting up the optical tube. \u003cbr\u003e\u003cbr\u003e Takahashi quality... Through and through!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePhoto shows a Takahashi TOA-150B OTA with the optional \u003ca href=\"https:\/\/optcorp.com\/products\/takahashi-6x30-finderscope-without-bracket\" target=\"_blank\" title=\"Takahashi 6x30 Viewfinder\" rel=\"noopener noreferrer\"\u003eviewfinder\u003c\/a\u003e, \u003ca href=\"https:\/\/optcorp.com\/products\/takahashi-6x30-finder-bracket-standard\" target=\"_blank\" title=\"Takahashi Finder Bracket\" rel=\"noopener noreferrer\"\u003ebracket\u003c\/a\u003e, and handle.\u003c\/strong\u003e \u003cbr\u003e\u003cbr\u003e Important Note: Takahashi America requires that their telescope optical tube assemblies be shipped via 2nd Day Air or faster in order for the full warranty to be in force. Please make sure you choose the appropriate shipping method in your shopping cart or, if you speak to an OPT associate, request 2nd Day Air or faster. If you are purchasing a telescope and mount package or any accessories to accompany an OTA, please \u003ca href=\"mailto:internetsales@optcorp.com\"\u003econtact OPT\u003c\/a\u003e for a shipping quote, since only the OTA is required to ship second day air but all other products can be shipped separately via any other available shipping method. Thank you!\u003c\/p\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eExcellent refractor telescope for deep-space imaging.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAperture: 150 mm (6 inches)\u003c\/li\u003e\n\u003cli\u003eFocal Ratio: f\/7.3\u003c\/li\u003e\n\u003cli\u003eFocal Length: 1100 mm\u003c\/li\u003e\n\u003cli\u003eImage Circle: 90 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePhoto shows a Takahashi TOA-150B OTA with the optional \u003ca href=\"https:\/\/optcorp.com\/products\/takahashi-6x30-finderscope-without-bracket\" target=\"_blank\" title=\"Takahashi 6x30 Viewfinder\" rel=\"noopener noreferrer\"\u003eviewfinder\u003c\/a\u003e, \u003ca href=\"https:\/\/optcorp.com\/products\/takahashi-6x30-finder-bracket-standard\" target=\"_blank\" title=\"Takahashi Finder Bracket\" rel=\"noopener noreferrer\"\u003ebracket\u003c\/a\u003e, and handle.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Takahashi","offers":[{"title":"Default Title","offer_id":44865765258,"sku":"TK-TOK15110","price":15070.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/4feb6aade01f620ba6a2108ced310695.jpg?v=1553309274"},{"product_id":"explore-scientific-127mm-ed-apo-f-7-5-triplet-refractor-telescope","title":"Explore Scientific 127mm Air-Spaced ED APO f\/7.5 Triplet Refracting OTA Telescope","description":"\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eThe Explore Scientific 127mm f\/7.5 ED APO Refractor Telescope is one of the most innovative ideas in high-quality apochromatic designs. Beginning with a tube fashioned from aluminum and stainless steel, what sets them apart starts from the inside. Explore Scientific uses advanced technology like its ED (Extra-low Dispersion) FCD1 (Dense Fluor Crown) glass, developed by Hoya Optical of Japan, to enable the production of lenses that offer superior sharpness and color correction by minimizing color distortion. This glass type offers a more durable and long-lasting solution to produce an optic to minimize chromatic aberration over delicate fluorite crystal objectives that are prone to fracturing and absorbing moisture. These true air-spaced apochromatic triplets have refinements like EMD (Enhanced Multilayer Deposition) coatings, which absolutely eliminates light scatter and maintains image contrast. Contrast is further enhanced with multiple baffles that mask and deflect unwanted stray light.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eUpgrade your telescope’s ability by mounting the ED 127 to many popular equatorial and Altaz mounts, including Explore Scientific's new TwiLight I and TwiLight II Altazimuth Mounts. Photographers, who are looking for super high resolution optics, can mount the optical tube assembly to their existing medium-duty camera tripod. A release knob allows the tube assembly to rotate so that the camera can be positioned at any angle. The Universal Adjustable Mounting Plate of the ED 127 fits on mounts supplied by Explore Scientific, Vixen, and Meade LXD55\/75. It also attaches to photo tripods with standard USA or European thread attaching knobs.\u003c\/span\u003e\u003c\/p\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eAperture: 127mm (5\")\u003c\/li\u003e\n\u003cli\u003eFocal Ratio: f\/7.5\u003c\/li\u003e\n\u003cli\u003eFocal Length: 952\u003c\/li\u003e\n\u003cli\u003eExcellent value for an excellent refractor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eED 127 Optical Tube Assembly\u003c\/li\u003e\n\u003cli\u003e2\" Diagonal\u003c\/li\u003e\n\u003cli\u003eDew Shield\u003c\/li\u003e\n\u003cli\u003eCradle Rings w\/ Handle\u003c\/li\u003e\n\u003cli\u003eRack and Pinion Focuser\u003c\/li\u003e\n\u003cli\u003eVixen-Style Dovetail\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":44877950794,"sku":"ES-ED127075-04","price":1999.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/ab0d7bd4256350b0894525d8071de4ac.jpg?v=1568051351"},{"product_id":"sw-s11130-evostar-120ed-apo-120mm-refractor-telescope","title":"Sky-Watcher Evostar 120ED APO - 120mm Refractor Telescope","description":"\u003cp\u003eSky-Watcher high-performance ED-APO refractors offer premium optical performance for the discriminating amateur astronomer. Refractors are coveted for their superb contrast, high-definition, and coal-black sky background that make stars appear like diamonds embedded in black velvet. Sky-Watcher ED APO refractors utilize the most modern optical glasses and fabricating techniques to deliver the ultimate in high-fidelity astronomical imaging. Subtle details pop as never seen before in telescopes of lesser optical capability.\u003c\/p\u003e\n\u003cp\u003eThe additional aperture compared to a 100 mm diameter lens provides a dramatic increase in resolution and a heightened sense of seeing lunar and planetary surface phenomenon in seemingly 3-D high-definition.\u003c\/p\u003e\n\u003cp\u003eThe rugged Southern Highlands of the lunar surface are rich in craters. To the southeast, the famous crater Theophilus is 65 miles across. The raised triple-peaked central area is striking to observe in your Sky-Watcher 120ED telescope, with massive walls and a basin that is 14,000 thousand feet deep. One of the Moon's southernmost craters, Clavius, is a very large crater 145 miles across. It is located south of Tycho. In this same area you will find the craters Maginus and Longomotanus, which are also very worthy of exploration. To the north, the young crater Tycho dominates the southern lunar landscape. Named after the famous Danish astronomer, Tycho Brahe, it is a spectacular sight with very high-rimmed walls. North of Tycho, appearing brightly in a basin, is the famous Rupes Rect (the Straight Wall), an 800-foot mountain that is a must see for amateur astronomers. Your Sky-Watcher 120ED will show it clearly and sharply the way you want to see it. On the north end of Mare Nubium, almost on the lunar N-S and E-W center line, you'll find 3 craters grouped together: Arzachel, a young impact crater 60 miles across and 13,000 feet deep, shows a terraced structure and a system of channel-like narrow depressions in its basin called rilles. Nearby are Alphonsus, a 70 mile wide crater, and Ptolemaus, a prominent ancient crater 90 miles across with a heavily worn dark interior. The Earth's Moon offers a treasure trove of fascinating detail to explore with your SW 120ED-APO EQ5 PRO. We have only featured a relative few examples of what is available. The views you will experience are so clear and sharp it might just feel like a veritable space-walk.\u003c\/p\u003e\n\u003cp\u003eThe inner solar system presents the colorful rusty-red planet Mars. Mars is a challenge for amateur astronomers, but your Sky Watcher 120ED will show some very interesting detail. Olympus Mons, a volcanic crater 375 miles across and 16 miles high, is just one of the quests your capable SW120ED can tackle. Nirgal Vallis is a channel 600 miles long that responds well to the razor sharp contrast provided by the Sky-Watcher 120 ED telescope. The Grand Canyon of Mars, Valles Mariners, dwarfs that of our Earth's Grand Canyon, but it still requires superb optics to view, even though it is 150 miles wide and 4 miles deep. When prominent, the gleaming white polar cap is in stark contrast to the redish-orange surface landscape of the rest of the planet. The gas giant, Jupiter, displays its swirling equatorial bands in high-definition, with festoons and tonality within the bands. With regular observation you will be able to follow storms and disturbances cross the planet in the southern equatorial band. Saturn's storied surface phenomenon is simply stunning. View the rings and clearly see Cassini's Division and cloud belts across the equator.\u003c\/p\u003e\n\u003cp\u003eEnjoy the hunt for double stars like Epsilon Lyrae, the double-double in Lyra, or, always a star party favorite, the beautiful double star Alberio, located in the tail of Cygnus the Swan, is sensational. Alberio appears like a gold sparkler, and its companion looks like a blue-green sparkler. It is a perfect object to view with your Sky-Watcher 120ED. Algol, an eclipsing variable star, sometimes called the Winking Eye fluctuates in brightness, and Aldebaran, a beautiful orange giant in the constellation of Taurus, are both delightful sights to view with the SW 120ED. Tight globular star clusters like M13 in Hercules appear like a beehive of crisp stellar pin points circling the central core when viewed with a good refractor like the Sky-Watcher 120ED. M92, also in the constellation of Hercules, is a very compact globular with a bright core. It is also a great object to view with the SW 120ED. The bright central cores of prominent nebulae can be seen and the brightest stars can be observed illuminating the glowing nebulosity which appears as ghostly apparitions.\u003c\/p\u003e\n\u003cp\u003eThe superb capabilities of the Sky-Watcher 120ED provide performance on a par with a reflector of perhaps up to 7\" in diameter on lunar, planetary, double-stars, globular star clusters, even the brighter nebulae. These objects will stand out in bold relief contrasted against a very dark, velvet-black sky background. Many advanced amateur astronomers feel the ED APO experience is astronomy's richest. As an astrograph, the Sky-Watcher Pro 120ED APO performs superbly, delivering crisp, high-fidelity imaging of solar phenomena (with proper filters) planetary, lunar and aperture appropriate deep-space phenomenon.\u003c\/p\u003e\n\u003cp\u003eIn a given aperture size, refractors will always exhibit sharper images than other optical designs because the refractor concentrates more light into the central airy-disk and first diffraction rings. There is no diffraction pattern interference caused by a diagonal mirror or secondary mirror being suspended in the optical path (central obstruction) as is the case with reflectors.\u003c\/p\u003e\n\u003cp\u003eSky-Watcher ED-APO refractors provide the finest images obtainable - bar none - in their design class. If you are on a quest for the ultimate in pristine, near textbook-perfect astronomical imaging, look no further! Sky-Watcher ED apochromatic refractors deliver dramatic coal-back skies and faithful, contrast-rich views of planetary and deep-space phenomenon that are second to none. Sky-Watcher ED-APO refractors are the logical choice as an investment in advanced instrumentation for exceptional viewing or photography.\u003c\/p\u003e\n\u003cp\u003eThe Sky-Watcher ED APO optical design assures virtual elimination of secondary, residual false color normally present in 2-element achromatic lens designs using Crown and Flint glass. Sky-Watcher APO refractors utilize a second lens element made from the mineral fluorite instead of Flint glass. Fluorite, CaF2, is a halide with unique properties and a hardness of only four. It is an exotic and difficult material to fabricate into a lens. Hence the cost of manufacturing a fluorite lens is quite high compared to a Flint lens element, for instance.\u003c\/p\u003e\n\u003cp\u003eWhy fluorite? Fluorite's molecular properties have several distinct advantages. First, it has superior dispersion characteristics compared to pure silica-based glass. It functions as a high-index lens with very low dispersion. We use the term ED to signify Extra-low Dispersion. Fluorite also corrects well for spherical aberration. Sky-Watcher utilizes only the very finest available fluorite lens, FPL-53.\u003c\/p\u003e\n\u003cp\u003eThe Sky-Watcher 120ED also benefits from the inclusion of Schott glass for the positive front Crown element in the objective. Schott is the recognized world leader in glass utilized for precision optical lens systems, including medical instrumentation, and famous-brand camera lenses. \u003cbr\u003e\u003cbr\u003e Each air-to-glass lens surface has exotic anti-reflection metallic coatings applied to ensure optimum light through-put. The proprietary Sky-Watcher Metallic High-Transmission Coatings (MHC) are the finest photon anti-rejection coatings in their class.\u003c\/p\u003e\n\u003cp\u003eEvery lens element is individually inspected for purity and absence of striae and other image-degrading imperfections. Every lens is pitched polished to exacting standards of optical fabrication and performance by highly skilled opticians utilizing state-of-the-art methodology and rigidly controlled optical testing procedures. The result is high-quality, diffraction-limited optics performing to the theoretical limits of their respective aperture sizes. All lenses are uniformly air-spaced in their cell housings.\u003c\/p\u003e\n\u003cp\u003eThe objective lens cell is light-baffled to reject stray, unfocused light. The draw tube is likewise baffled to insure optimum contrast. The tube interior is flat blackened to help prevent unfocused internal light reflections from reaching the focal plane.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ccenter\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cstrong\u003eOther Highlights of the Sky-Watcher 120ED Telescope...\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/center\u003e\n\u003cul\u003e\n\u003cli\u003eOptical focus is achieved by means of a mechanically ultra-smooth, backlash-free, precision 2\" Crayford-style rack \u0026amp; pinion focuser-assembly. This focuser offers 2-speed fine and ultra-fine focusing adjustments.\u003c\/li\u003e\n\u003cli\u003eThe optical tube material is aluminum, powder-coated reflective gloss black with gold fleck accent. The front and back cells are cast-aluminum painted white, or black.\u003c\/li\u003e\n\u003cli\u003eThe telescope is supplied with a right-angle 9 x 50 mm viewfinder with bracket; a 2-inch dielectric diagonal; two 1.25-inch LE (Long Eye Relief) eyepieces (LE 20 mm and LE 5 mm); a 1.25-inch focuser adapter; tube ring attachment hardware for mounting to the Sky-Watcher EQ5PRO Mount (or other compatible mount), and a foam lined aluminum carry\/storage case.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAperture: 120 mm (4.72-inch)\u003c\/li\u003e\n\u003cli\u003eFocal Ratio: f\/7.5\u003c\/li\u003e\n\u003cli\u003eFocal Length: 900 mm\u003c\/li\u003e\n\u003cli\u003eOptical Design: Apochromatic Refractor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eSky-Watcher Evostar 120ED OTA\u003c\/li\u003e\n\u003cli\u003e2-inch Crayford Focuser\u003c\/li\u003e\n\u003cli\u003e9 x 50 Finderscope\u003c\/li\u003e\n\u003cli\u003e2-inch Dielectric Diagonal\u003c\/li\u003e\n\u003cli\u003e20 mm Eyepiece\u003c\/li\u003e\n\u003cli\u003e5 mm Eyepiece\u003c\/li\u003e\n\u003cli\u003eMounting Hardware\u003c\/li\u003e\n\u003cli\u003eAluminum Carrying Case\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44878172234,"sku":"SW-S11130","price":2490.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/bdb213ff74d359573953c3776d1b550b.jpg?v=1553311819"},{"product_id":"sw-s11120-evostar-100-ed-apo-refractor-telescope","title":"Sky-Watcher Evostar 100 ED APO Refractor Telescope","description":"The Sky Watcher Evostar ED100 is a modestly wide-field telescope offering bright, wide swaths of sky in a single view. It is well suited for wide-field astronomical observation of prominent nebulae, star clusters, and galaxies from a dark-sky location, or can be used as an astrograph for sky photography. As a terrestrial spotting scope or telephoto lens, the Skywatcher ED100's performance is absolutely superb. Ultra high contrast allows the subtlest of details to be easily scrutinized under conditions of good seeing. The petite silhouette of the Sky Watcher Evostar ED100 makes for an excellent compact, portable telescope that travels light and fits a small space. \u003cbr\u003e\u003cbr\u003e Fortunate indeed is the amateur astronomer with a Sky-Watcher Evostar ED100mm refractor on a clear night with transparent skies and a stable atmosphere. It's the \"Black Diamond\" of the optic world. Turning the telescope to the Crescent Moon, the Apennine Mountains snap into razor-sharp focus revealing a cornucopia of jagged mountain ridges, canyons, and numerous small craters in ultra high definition. Not far removed, reaching skyward, the crater wall of Archimedes pops into view in bold relief against the smooth flatlands that transverse the distance between it and the Apennine Mountains. This is lunar observing at its best: HD style. \u003cbr\u003e\u003cbr\u003e The gas giant Jupiter displays its swirling equatorial bands in high-definition with festoons, and tonality within the bands. The great spot is clearly visible, discreetly contrasted from the surrounding Jovian landscape. Prominent deep-space nebula yield improved definition in gaseous outer extensions. Stars in globular clusters resolve to pinpoints. This is just the beginning of an incredible journey of exploration possible with a Pro ED100. \u003cbr\u003e\u003cbr\u003e The Sky Watcher Pro ED100 benefits from the inclusion of Schott glass being used for the positive front Crown element in the objective. Schott is the recognized world leader in glass utilized for precision optical lens systems, including medical instrumentation, and famous-brand camera lenses. While Schott glass is only used in selected models, all other models utilize top-quality, Grade-A glass from perhaps less famous but, nonetheless, highly respected, high-quality glass manufacturers. Each air-to-glass lens surface has exotic anti-reflection metallic coatings applied to ensure optimum light through-put of approaching 99.5%. The proprietary Sky-Watcher Metallic High-Transmission Coatings (MHC) are the finest photon anti-rejection coatings in their class. \u003cbr\u003e\u003cbr\u003e The objective lens cell is light-baffled to reject stray, unfocused light. The draw tube is likewise baffled to insure optimum contrast. The tube interior is flat blackened to help prevent unfocused internal light reflections from reaching the focal plane. Optical focus is achieved by means of a mechanically ultra-smooth, backlash-free, precision 2\" Crayford rack \u0026amp; pinion focuser-assembly. This focuser offers fine and ultra-fine focusing adjustments. The optical tube material is rolled steel, powder-coated reflective gloss black with gold fleck accent. The front and back cells are cast-aluminum painted white, or black. \u003cbr\u003e\u003cbr\u003e The optical tube comes with attachment hardware that allows it to be securely fastened to any Sky-Watcher mount. The quick-release tube rings provided with SkyWatcher Pro ED100 are cast-aluminum, painted white. The ED100 is supplied with backlash-free 2\" Crayford focusers and quality foam-lined metal carrying cases as standard equipment. Black Diamond ED100 is also supplied with 8x50mm viewfinder with bracket; 2\" 1.25\" focuser adaptor; and tube ring attachment hardware for mounting to any Sky-Watcher, or other compatible mounts.\u003ccenter\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cstrong\u003eSky-Watcher Evostar ED100 Refractor OTA Features\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/center\u003e\n\u003cul\u003e\n\u003cli\u003eThe proprietary Sky-Watcher Metallic High-Transmission Coatings (MHC) are the finest photon anti-rejection coatings in their class.\u003c\/li\u003e\n\u003cli\u003eThe tube interior is flat blackened to help prevent unfocused internal light reflections from reaching the focal plane.\u003c\/li\u003e\n\u003cli\u003eThe optical tube material is rolled steel, powder-coated reflective gloss black with gold fleck accent.\u003c\/li\u003e\n\u003cli\u003eThe optical tube comes with attachment hardware that allows it to be securely fastened to any Sky-Watcher mount.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eAperture: 102mm (4\")\u003c\/li\u003e\n\u003cli\u003eFocal Ratio: f\/9\u003c\/li\u003e\n\u003cli\u003eFocal Length: 918mm\u003c\/li\u003e\n\u003cli\u003eOptical Design: Achromatic Refractor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eSky-Watcher Evostar 100mm ED APO Refractor OTA\u003c\/li\u003e\n\u003cli\u003eFoam-lined Metal Carrying Case\u003c\/li\u003e\n\u003cli\u003e8x50mm Viewfinder with Bracket\u003c\/li\u003e\n\u003cli\u003e2” Dielectric Diagonal\u003c\/li\u003e\n\u003cli\u003eTwo 1.25” LE (Long Eye Relief) eyepieces (LE20mm and LE5mm)\u003c\/li\u003e\n\u003cli\u003e1.25” Focuser Adaptor\u003c\/li\u003e\n\u003cli\u003eTube Ring Attachment Hardware\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44879026634,"sku":"SW-S11120","price":1255.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/7e5e005c0a7b401e48955cf7cfd2c133.jpg?v=1553312003"},{"product_id":"orion-ed80t-cf-triplet-apochromatic-refractor-telescope-9534","title":"Orion ED80T Carbon Fiber ED APO Refractor Telescope","description":"\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003eThe ED80T 80 mm (3.15-inch) aperture, CF Triplet Apochromatic Refractor Telescope by Orion:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOrion is proud to announce an exciting addition to our already prestigious line of ED refractors, the 80 mm apochromatic triplet Orion ED80T CF. With an 80 mm (3.15-inch) aperture triplet objective featuring FPL-53 extra-low dispersion glass, views come through true to color and exhibit tack-sharp resolution. \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003e Apochromatic refractor telescopes\u003c\/strong\u003e\u003c\/span\u003e have a devoted following amongst amateur astronomers, and for good reason. The crisp view offered by a high-quality APO refractor is truly a wonder to behold and share. Apochromatic refractors significantly reduce chromatic aberration, or false color, compared to standard achromatic refractor telescopes due to the use of \"ED\" (Extra-low Dispersion) optical glass and use of three optical elements. The visual and imaging benefits of APO refractors have helped to make them instruments of choice by many real-time observers and imaging experts alike.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003e The ED80T CF\u003c\/strong\u003e\u003c\/span\u003e is a versatile power performer telescope well-suited for multiple applications. With a focal length of 480 mm (f\/6.0), its fast unobstructed optics yield detail-rich visual views of solar system and wide-field deep-sky objects alike. The triplet objective and ED optics virtually eliminate chromatic aberrations making the ED80T CF an excellent candidate for astrophotography use when used with an imaging-capable EQ mount and CCD or DSLR camera. The relatively small size and light weight of the telescope makes it perfectly portable for escapades to dark-sky locations for either visual or photographic expeditions. The retractable dew shield makes the ED80T CF even more compact for storage and transport, with a length of 14.3-inch with the dew shield fully retracted. The telescope measures 18.25-inch long when the dew shield is fully extended to minimize peripheral glare and dew accumulation.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003e The striking carbon-fiber tube\u003c\/strong\u003e\u003c\/span\u003e is nifty to look at, and makes the ED80T CF a lightweight luxury to transport and mount. Weighing in at a mere 5.5-pounds, this is one telescope you won't have to break your back (or bank account) when considering mounting options. The integrated dovetail mounting base attaches directly to any Orion EQ mount equipped with a narrow (Vixen-style) dovetail saddle without the need for additional mounting accessories. While a stable motorized equatorial (EQ) mount is recommended for astrophotographic pursuits, the ED80T CF can be adequately mounted on a wide variety of lightweight sturdy field and photo tripods by virtue of the same integrated dovetail mounting base which features a threaded 1\/4-inch\/20 accepter. \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003e In keeping with Orion's established tradition\u003c\/strong\u003e\u003c\/span\u003e of offering quality products at affordable prices, the ED80T CF is offered to you at an amazing value. What's more, we've included top-notch features and accessories which are sure to please even the most discerning APO aficionado. The precision machined Crayford-style focuser provides dual-speed focus adjustment perfect for dialing in delicate details of celestial and terrestrial subjects. The smaller fine focus knob adjusts focus at a rate of 11:1 compared to the coarse focus knob, giving you the ability to home-in on just the right focal point. The included 2-inch to 1.25-inch eyepiece adapter allows trouble-free use of higher magnification 1.25-inch telescope eyepieces or 1.25-inch accessories. For storage and safe transport, everything fits nicely in the included hard case with custom die-cut foam interior.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eOPT Product Number: \u003cb\u003eOR-9534\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cstyle\u003e\u003c\/style\u003e\n\u003cstyle\u003e\u003c\/style\u003e\n\u003cstyle\u003e\u003c\/style\u003e","brand":"Orion","offers":[{"title":"Default Title","offer_id":44887189130,"sku":"OR-09534","price":999.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/download-2021-04-29T121636.967.png?v=1619720235"},{"product_id":"tele-vue-np127is-f-5-2-petzval-refracting-telescope","title":"Tele Vue NP127is f\/5.2 Petzval Refracting Telescope","description":"\u003cp\u003eNever one to rest, Tele Vue took the opportunity to tweak the scope in small but meaningful ways. Both the optical and mechanical designs have been revised to reduce atmospheric defocusing sensitivity (visually the difference is virtually indiscernible). The new lens prescription delivers smaller spot sizes over a broader wavelength range than previously, while a new stainless steel front cell helps provide better thermal stability in extreme climates. Advanced multi-coatings are applied to maximize contrast and transmission. Still the fastest in the industry, there is just no competitive comparison considering its f\/5.2 speed and flat-field.\u003c\/p\u003e\n\u003cp\u003eThe instrument has also been mechanically updated from its longer captive dew shield to its new 10:1 focuser pinion assembly, made for Tele Vue by Starlight Instruments. Along with an all new gloss black anodized metalwork treatment, the handsome new shapes of the dew shield and rear cell bring a refined elegance to this high performance APO refractor.\u003c\/p\u003e\n\u003cp\u003eThe non-vignetting focuser retains its 3\" input and 2.4\" output to reduce bulk and permits imaging across the largest commercially available CCD chips (52mm diagonal). No need for a heavier, more cumbersome 3\" focuser. Every 2.4\" focuser we make is tested to hold and drive a minimum of 6 lbs of weight in vertical orientation.\u003c\/p\u003e\n\u003cp\u003eExcept for a new Focusmate Driver attachment (available shortly), all other Imaging System accessories fit as previously.\u003c\/p\u003e\nJust what makes the TeleVue NP-127is so special? The standard by which it is built. The four-element air-spaced Nagler-Petzval system begins with a precision machined 660mm focal length optical tube that's fully internally blackened to prevent any stray light inflections. Then it's combined with a 127mm aperture extra low dispersion glass doublet as the primary lens with a with a secondary field-flattening\/aberration-correcting extra low dispersion glass doublet at the opposite end. All optical surfaces receive index matched multi-coatings. This design offers up diffraction-limited apochromatic peformance - simultaneously correcting for field curvature, astigmatism, spherical aberration, coma, secondary spectrum and spherochromatism. \u003cbr\u003e\u003cbr\u003e Televue was determined to make the NP127is series optically, mechanically, and functionally as perfect as possible for imaging up to 50mm diagonal chips without penalty to its near ideal visual operation. How? By applying the developments created for the Televue-60is to the new NP101is and NP127is and then going beyond. The NP101 (f\/5.4, 4\") and NP127 (660mm, f\/5.2, 5\") maintain their optical specifications yet with redesigned 4-element optical systems. Larger rear lens groups absolutely minimize vignetting in formats up to 52mm diagonal. For these large chips an optional field corrector was developed so the corners of the newly brightened edges would virtually be as perfect as the center of the field. \u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eAperture: 127mm (5\")\u003c\/li\u003e\n\u003cli\u003eFocal Ratio: f\/5.2\u003c\/li\u003e\n\u003cli\u003eFocal Length: 660mm\u003c\/li\u003e\n\u003cli\u003eOptical Design: Apochromatic Refractor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eNP-127is APO Refractor OTA\u003c\/li\u003e\n\u003cli\u003eSliding Captive Dew Shield\u003c\/li\u003e\n\u003cli\u003eCustom Fitted Case\u003c\/li\u003e\n\u003cli\u003e2\" Accessory Adapter\u003c\/li\u003e\n\u003cli\u003eImaging Insert\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tele Vue","offers":[{"title":"Default Title","offer_id":44889039434,"sku":"TE-NPI-5054","price":7373.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/e2515e936eca651744c43afd52177066.jpg?v=1553308932"},{"product_id":"takahashi-fs-60q-60mm-fluorite-quad-refractor-tfk6004qe","title":"Takahashi FS-60Q Fluorite Refractor w\/ CQ Module","description":"\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003eThe FS-60Q Fluorite Refractor Telescope with a C Quad Module by Takahashi:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eThe Takahashi FS-60Q is a new version of the FS-60CB. The FS-60Q includes a module which contains a 1.7x extender, which changes the FS-60Q to a 600 mm focal length f\/10 instrument. This module is removable, and is compatible with any FS-60C ever made to covert it to the Q when the 1.7x module is attached. This conversion is as simple as removing the white tube from the focuser, attaching the 1.7x module to the focuser, and then attaching the section with the objective in it to the 1.7x module. \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e The in-place extender, flattens the image to a 44 mm circle with 96-inch illumination to allow imaging the Moon, planets or a solar eclipse. The larger image scale of the 60 mm focal length allows prominences and the corona to be more easily seen or imaged with a digital SLR. Used with the optional Extender-Q, the FS-60Q becomes an f\/16 960 mm telescope that will be able to view some of the smaller lunar craters and produce a 9 mm lunar image on a sensor from its 40 mm image circle. \u003cbr\u003e\u003cbr\u003e The Tak 1.7x CQ module can be easily removed which will convert the FS-60Q to an FS-60CB f\/5.9. Now the dedicated reducer [.72x] f\/4.2 and dedicated flattener can be used to image at f\/6.1 for flat field or wide field imaging. The F\/5.9 FC-60CB can also be used for wide field observing. Further, the Takahashi1.7x CQ module is sold separately for the owners of FS-60C, CSV's and CB's which converts them into the FS-60Q with all of the benefits the module enables, as mentioned previously.\u003c\/p\u003e\n\u003cp\u003eVersatility is that word that best describes the FS-60Q modular telescope. Converts from an f\/10 600 mm focal length instrument to an f\/5.9 354 mm wide field instrument that can be used to image at f\/6.2 using the dedicated flattener or to f\/4.2 with the dedicated reducer. Both devices providing a 44 mm image circle which will cover an APS size chip or used at f\/10 with a 44 mm flat field 95-percent illuminated to narrow field imaging; or extended with the Extender-Q to 960 mm for lunar, nature or eclipse imaging at f\/16 with a 40 mm image circle.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003eTakahashi FS-60Q 1.7X CQ Features:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType: Fluorite 2 +\u003c\/li\u003e\n\u003cli\u003eEffective aperture: 60 mm\u003c\/li\u003e\n\u003cli\u003eFocal length: 600 mm\u003c\/li\u003e\n\u003cli\u003eFocal ratio: f\/10\u003c\/li\u003e\n\u003cli\u003eTube diameter: 80 mm\u003c\/li\u003e\n\u003cli\u003eTube length: 407 mm [16.02-inches] - [FS-60Q] 280 mm [11.02-inches] - [FS-60CB]\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEach Takahashi FS-60Q is supplied with a set of covers for the QE module which will allow the scope to be made into tow assemblies, the FS-60CB and the QE module for easy airline transport. This is perfect for eclipse chasing. A \u003ca href=\"http:\/\/static.shoplightspeed.com\/shops\/601956\/files\/003866877\/system-chart-fs-60q.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cstrong\u003esystem chart\u003c\/strong\u003e\u003c\/a\u003e is also extremely valuable when deciding what accessories to use. \u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eOPT Product Number: \u003cb\u003eTK-TFK6004Q\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ci\u003eThe finder and bracket shown in the image of the FS-60Q are sold separately.\u003c\/i\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Takahashi","offers":[{"title":"Default Title","offer_id":44889490186,"sku":"TK-TSK06110","price":1536.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/e211e30f44084ed8c0ee97da99447f0c.jpg?v=1553300121"},{"product_id":"televue-tv85-apo-telescope-evergreen","title":"Tele Vue TV85 APO Telescope - Evergreen","description":"\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eThe Tele Vue-85 is a doublet APO that is perfect for anyone anywhere. It is small enough to be taken as a carry-on for most airlines, It’s 85mm aperture will allow you resolve double stars, lunar detail and wispy nebulas. It is also capable of taking great asto-images with the optional \u003ca href=\"https:\/\/optcorp.com\/products\/tele-vue-0-8x-reducer-400mm-600mm-telescopes\" title=\"Televue TE-TRF-2008 0.8X Reducer for 400mm to  600mm Telescopes\"\u003eTRF-2008\u003c\/a\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Tele Vue","offers":[{"title":"Default Title","offer_id":44895696266,"sku":"TE-GXO-3372","price":2167.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/Tele-Vue-TV85-APO-Telescope-Evergreen.jpg?v=1553309144"},{"product_id":"televue-tv85-apo-telescope-ivory","title":"Tele Vue TV85 APO Telescope - Ivory","description":"\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eThe Tele Vue-85 is a doublet APO that is perfect for anyone anywhere. It is small enough to be taken as a carry-on for most airlines, It’s 85mm aperture will allow you resolve double stars, lunar detail and wispy nebulas. It is also capable of taking great asto-images with the optional \u003ca href=\"https:\/\/optcorp.com\/products\/tele-vue-0-8x-reducer-400mm-600mm-telescopes\" target=\"_blank\" title=\"Tele Vue TRF-2008 .8x Reducer for 400mm to 600mm Telescopes\" rel=\"noopener noreferrer\"\u003eTRF-2008\u003c\/a\u003e.\u003c\/span\u003e\u003c\/p\u003e","brand":"Tele Vue","offers":[{"title":"Default Title","offer_id":44895702026,"sku":"TE-WXO-3372","price":2167.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/Tele-Vue-TV85-APO-Telescope-Ivory.jpg?v=1553309220"},{"product_id":"tele-vue-tv-76-white-ota-telescope","title":"Tele Vue TV-76 White OTA Telescope","description":"\u003cp\u003eThe Televue-76 combines the Pronto's compact size with the APO optical performance of the Televue-85. The combination of the apochromatic doublet lens and the special dispersion glass come together in the genius of the Tele Vue design to provide a stunning 5.5-degree rich-field with delicate jewel-like stars.\u003c\/p\u003e\n\u003cp\u003eThe apochromatic performance of the new Nagler designed, fully multi-coated 2-element objective and 2\" Everbrite diagonal produce natural stellar and planetary color rendition even at the highest useful powers. The diagonal itself is known for its legendary full 99% reflectivity properties and permitting the use of long focal length 2\" eyepieces. Whether you're pushing beyond the theoretical magnification limits of 160x or taking your breath away with incredibly low power, picture window views of the heavens, the TV-76 is there to deliver.\u003c\/p\u003e\n\u003cp\u003eThe Televue-76 isn't only a night owl. You'll love this telescope for bird watching and nature studies, too. The included 20mm TeleVue Plossl eyepiece provides outstanding scenic views - from the nesting eagles to the sailing ships. The small size and light weight of the TV76 permit the use of lighter-duty tripods for easy field carrying and transportation, making it an ideal companion for nature hikes, vacation trips, and travel. The padded shoulder bag provides protection and room for the scope and six eyepieces, and this true rich field telescope can even be considered \"carry on\" luggage.\u003c\/p\u003e\n\u003cp\u003eAs incredible as the Televue-76 performs, it the lasting qualities that count when it comes to making a serious scope investment. Not only is the TV76 a work of optical art - but mechanical as well. The 2\" rack and pinion focuser was designed with a brass, non-marring clamp ring instead of a single set screw. Not only will this hold your accessories more securely in place, but it won't mar the barrel of your prized optics - and neither will the 1.25\" adapter. The focuser glides smoothly and cleanly, with just enough tension to keep from making corrections too quickly - yet loose enough to keep from feeling \"stiff\" in cold weather. By including simple standard equipment such as split-ring tube holder and tripod adapter, you can easily mount it to an optional photo tripod or enjoy the optional lightweight and transportable Televue TelePod with your system.\u003c\/p\u003e\n\u003cp\u003eBy designing the tube with a split ring, photographers will love the Televue TV-76, because it can easily be moved in the adapter when balancing a camera and accessories. For those who are looking for an outstanding telephoto lens, optional Televue adapters will quickly turn the TV76 into a 480mm (9.6x) f\/6.3 performer worthy of your best nature and sky shots. If you demand high-quality optics? This is the scope for you.\u003c\/p\u003e\n\u003cp\u003eAll Televue products are covered by a Five Year Worldwide Limited Product Warranty! Always be sure to save your original packaging materials should you need to return any Televue product for warranty or repair.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Tele Vue","offers":[{"title":"Default Title","offer_id":44895706314,"sku":"TE-WXO-3065","price":1734.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/Tele-Vue-TV76-APO-Refractor-Telescope-Ivory-1.jpg?v=1553308846"},{"product_id":"takahashi-fc-76ds","title":"Takahashi FC-76DS - 76mm f\/7.5 Doublet Fluorite APO Refractor","description":"\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: #000000;\"\u003eAbout the Takahashi FC-76 Doublet Fluorite Refractor Series\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe Takahashi FC-76 Series is an updated version of the original from 1980. The multi-coated fluorite rear lens and eco-glass front element provides maximum light transmission. The design takes advantage of the advances in high resolution digital imaging. The advanced design allows the focal length to be reduced by 30 mm 594 mm at f\/7.8.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003eAbout the Takahashi FC-76DS Doublet Fluorite Refractor\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe FC-76DS model features a the Sky-90 2.6 focuser to better hold imaging packages which include DSLRs and CCD cameras with filter wheels. An optional dedicated flattener as well as extender are available to further enhance the capabilities of the FC-76DS. A sliding dew shield is also included and a larger OD 90 mm tube is standard. \u003cbr\u003e\u003cbr\u003e The optional dedicated reducer changes the focal length to 417 mm with a focal ratio of f\/5.5 and an image circle of 36 mm. The dedicated flattener operates at f\/7.8 and 594 mm produces a 40 mm flat circle. This telescope is exceptionally well-suited for solar eclipse imaging and can be carried by the Teegul Sky Patrol III or larger PM-1mount. When picking out accessories for any Takahashi telescope, a \u003ca href=\"http:\/\/static.shoplightspeed.com\/shops\/601956\/files\/003868259\/fc76ds-system-chart.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cstrong\u003esystem chart\u003c\/strong\u003e\u003c\/a\u003e is of great use.\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eTakahashi FC-76DS Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDesign: Doublet fluorite apochromat\u003c\/li\u003e\n\u003cli\u003eDiameter: 76 mm\u003c\/li\u003e\n\u003cli\u003eFocal ratio: f\/7.5\u003c\/li\u003e\n\u003cli\u003eTube diameter: 95 mm\u003c\/li\u003e\n\u003cli\u003eTube length: 550 mm\u003c\/li\u003e\n\u003cli\u003eWeight: 6.6 pounds\u003c\/li\u003e\n\u003cli\u003eWith Dedicated reducer:\u003c\/li\u003e\n\u003cli\u003eFocal ratio: f\/5.5\u003c\/li\u003e\n\u003cli\u003eFocal length: 417 mm\u003c\/li\u003e\n\u003cli\u003eImage circle: 36 mm\u003c\/li\u003e\n\u003cli\u003eWith Dedicated Flattener:\u003c\/li\u003e\n\u003cli\u003eFocal ratio: f\/7.8\u003c\/li\u003e\n\u003cli\u003eFocal length: 594 mm\u003c\/li\u003e\n\u003cli\u003eImage circle: 40 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e \u003cbr\u003e OPT Product Number: TK-TFK07630\u003c\/p\u003e","brand":"Takahashi","offers":[{"title":"Default Title","offer_id":44899958986,"sku":"TK-TFK07630","price":2010.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/aa7e4212c4fb5cdb7ac34dcc5d7c58de.jpg?v=1553314564"},{"product_id":"sky-watcher-esprit-100-ed-apo-refractor-s11410","title":"Sky-Watcher Esprit 100mm ED Triplet APO Refractor","description":"\u003cp\u003eThe\u003cb\u003e Sky-Watcher 100mm Esprit ED Triplet APO Refractor\u003c\/b\u003e\u003cspan style=\"font-weight: 400;\"\u003e \u003c\/span\u003e\u003cspan style=\"font-weight: 400;\"\u003ewas designed with astro-imagers in mind that are eager to develop their astrophotography skills. Its three-element air spaced objective lens design, fully removes false color giving you prime contrast and sharpness. The included two-element field corrector guarantees a flat field across the entire imaging plane giving you brighter images. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eThe air-spaced\u003c\/span\u003e\u003cb\u003e ED APO Optics \u003c\/b\u003e\u003cspan style=\"font-weight: 400;\"\u003eare fully multi-coated for extra clarity, contrast, and protection. Three-element apochromatic objective with an included thread-on field flattener to the oversized micro-focuser. This system produces a 40 mm image circle, and you have about 69 mm of back focus for plenty of imaging accessories. Use it as a giant lens to capture the Universe with one of today’s amazing CCD cameras.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eThe \u003c\/span\u003e\u003cb\u003eDew Shield\u003c\/b\u003e\u003cspan style=\"font-weight: 400;\"\u003e, when extended, will protect the optics from dew and help increase contrast by blocking stray light that might otherwise strike the glass. The shield is fully retractable when necessary in order to shorten your OTA for storage and travel.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eThe Helinear Track Focusing System\u003c\/b\u003e\u003cspan style=\"font-weight: 400;\"\u003e, a Sky-Watcher exclusive, is a rock-solid 2.7-inch rack and pinion focuser that will perform smoothly, without image shift, due to the extra support rail on the top of the drawtube. The micro focuser allows you to make\u003c\/span\u003e\u003cspan style=\"font-weight: 400;\"\u003e strong\u003c\/span\u003e\u003cspan style=\"font-weight: 400;\"\u003e and fine adjustments to focus, and the knobs are easy to turn, even with cold hands or with gloves on. A thread-on step down ring takes the opening down for 2-inch accessories.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003e100mm (3.94-inch) aperture.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003ef\/5.5 focal ratio.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003e550mm Focal Length\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eUp to 236x magnification.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003e9x50 optical finder included.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eSpectacular imaging performance.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eSky-Watcher 4-inch f\/5.5 ED Triplet APO Refractor.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003e9 x 50 RA Erect-image Finderscope and Bracket.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eThread-on Field Flattener.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003e2.7-inch Rack and Pinion Microfocuser.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003e2.7-inch to 2-inch Thread on Adapter.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003e2-inch to 1.25-inch Adapter.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003e2-inch Diagonal.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eCanon Camera Adapter.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eTube Rings with D-Series Dovetail Bar.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eAluminum Case.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44905912458,"sku":"SW-S11410","price":3210.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/S11410_Esprit100ED_LeftFront_1800x1800_a9f8b8a8-b5a3-4958-bc5e-2620ed52ef70.jpg?v=1594847554"},{"product_id":"takahashi-fc-100dc-f-7-4-fluorite-refractor","title":"Takahashi FC-100DC F\/7.4 Fluorite Refractor","description":"\u003cp\u003eThe Takahashi FC-100DC F\/7.4 Fluorite Refractor OTA provides outstanding performance for both visual observers and astrophotographers. It has its own dedicated set of reducers and flatteners and also uses some accessories from the TOA series.\u003c\/p\u003e\n\u003cp\u003eThe FC-100DC Telescope consists of an apochromatic fluorite Steinheil doublet with a 100 mm objective. The front element uses an eco-glass for maximizing light transmission and a coated fluorite rear element for color correction.\u003c\/p\u003e\n\u003cp\u003eThe optical tube has a fixed dew shield and a 2.2-inch rack and pinion focuser.  While a capable imaging instrument, it is designed with the visual observer in mind.\u003c\/p\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eGreat for visual and astrophotography\u003c\/li\u003e\n\u003cli\u003eLarger 100mm aperture great high contrast views\u003c\/li\u003e\n\u003cli\u003eExcellent for viewing galaxies, globular clusters, \u003cspan\u003enebulae, and planets\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eRear Flourite element for optimum color corrector\u003c\/li\u003e\n\u003cli\u003eMount, clamshell rings, finder scope, and finder bracket pictured are NOT included\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Takahashi","offers":[{"title":"Default Title","offer_id":44908058570,"sku":"TK-TFK10010","price":2510.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/Takahashi-FC-100DC-F-7-4-Fluorite-Refractor-OTA-TK-TFK10010.jpg?v=1553300553"},{"product_id":"takahashi-fc-100df-f-7-4-fluorite-apo-refractor","title":"Takahashi FC-100DF f\/7.4 Fluorite APO Refractor","description":"\u003cp\u003eThe Takahashi FC-100DF f\/7.4 Fluorite Refractor OTA provides outstanding performance for both visual observers and astrophotographers. It has its own dedicated set of reducers and flatteners and also uses some accessories from the TOA series.\u003c\/p\u003e\n\u003cp\u003eThe FC-100DF Telescope is an apochromatic fluorite Steinheil doublet with a 100 mm objective. The front element is ground and polished from eco-glass to maximize light transmission and the rear element is made from coated fluorite for optimum color correction.\u003c\/p\u003e\n\u003cp\u003eThe optical tube has a fixed dew shield and a 2.7-inch rack and pinion focuser and has shorter tube length than the FC-100DC which provides the additional back focus for astrophotography purposes.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGreat for visual and astrophotography\u003c\/li\u003e\n\u003cli\u003eOptional accessories for planetary and deep space imaging\u003c\/li\u003e\n\u003cli\u003eLarger 100 mm aperture great high contrast views\u003c\/li\u003e\n\u003cli\u003eExcellent for viewing galaxies, globular clusters, \u003cspan\u003enebulae, and planets\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eRear Flourite element for optimum color correction\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Takahashi","offers":[{"title":"Default Title","offer_id":44908083210,"sku":"TK-TFK10110","price":2750.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/Takahashi-FC-100DF.jpg?v=1526684770"},{"product_id":"explore-scientific-80mm-essential-series-f-6-triplet-telescope","title":"Explore Scientific ED80 Air-Spaced Essential Series APO f\/6 Triplet Refracting Telescope","description":"\u003cp\u003e\u003cstrong\u003eThe Explore Scientific 80mm Refractor's\u003c\/strong\u003e light-weight portability gives you the freedom to observe or image the night sky from various locations! It is a true-element apochromatic telescope capable of producing research-level image quality. Use it as a grab-and-go telescope, or add a field-flattener to make this a great wide-field astrophotography optical tube.\u003cbr\u003e\u003cbr\u003eSee the moon’s crevasses up close with its genuine apochromatic lens. Your telescope was designed to capture light to its true color with its HOYA FCD1 ED glass giving you spectacular viewing.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eExplore Scientific ED80 f\/6 Essential Series Triplet Refractor Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIt comes with a white aluminum tube with black accents.\u003c\/li\u003e\n\u003cli\u003eTrue APO optic and are diffraction limited at .25PV or better.\u003c\/li\u003e\n\u003cli\u003eGenuine ED glass from Hoya Japan is used on all ED APO Triplets at Explore.\u003c\/li\u003e\n\u003cli\u003eEnhanced Multi-Layer Coatings (EMD) are deposited on optical elements to boost contrast and eliminate light scatter, and contrast is further enhanced with the installation of matte black knife-edge baffles in the optical tube assembly.\u003c\/li\u003e\n\u003cli\u003e80 mm models come with heavy-duty 2-inch dual-speed focusers.\u003c\/li\u003e\n\u003cli\u003eThe included 2-inch diagonal has a precision-polished mirror with enhanced 99% dielectric coatings.\u003c\/li\u003e\n\u003cli\u003eTo attach your Explore Scientific Air-Spaced Triplet telescope to a variety of mounts, we have included the \"Vixen-style\" dovetail. The \"Vixen-style\" plate fits mounts made by Explore, Meade, Celestron, Vixen \u0026amp; others.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eAperture: 80 mm.\u003c\/li\u003e\n\u003cli\u003eFocal Ratio: f\/6.\u003c\/li\u003e\n\u003cli\u003eFocal Length: 480 mm.\u003c\/li\u003e\n\u003cli\u003eWeight: 7.5 lb.\u003c\/li\u003e\n\u003cli\u003eVersatile Refractor Telescope.\u003c\/li\u003e\n\u003cli\u003eHigh Power Optics.\u003c\/li\u003e\n\u003cli\u003e2-speed focuser.\u003c\/li\u003e\n\u003cli\u003e99% dielectric 2-inch diagonal.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eExplore Scientific 80 mm f\/6 Essential Series Triplet Refractor.\u003c\/li\u003e\n\u003cli\u003eVixen Style Dovetail.\u003c\/li\u003e\n\u003cli\u003e2-inch Dual-Speed Focuser.\u003c\/li\u003e\n\u003cli\u003e2-inch Dielectric Diagonal.\u003c\/li\u003e\n\u003cli\u003eFinderscope Base.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":44911562762,"sku":"ES-ED0806-02","price":899.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/Explore-Scientific-80mm-Air-Spaced-Essential-Series-ED-APO-F-6-Triplet-Refracting-OTA-Telescope.jpg?v=1524162252"},{"product_id":"explore-scientific-102mm-f-7-essential-apo","title":"Explore Scientific 102mm f\/7 Essential Series APO Triplet Refractor - No Case","description":"\u003cp\u003eFrom our Moon's chiseled craters to Jupiter's orderly cloud belts to the blue-white stars of the Orion Nebula popping against the complex misty cloud they call home, Explore Scientific's 102mm Apochromatic Refractor can open up a treasure trove of night sky treats.\u003cbr\u003e\u003cbr\u003e A nice compromise between portability and aperture, this versatile high-end telescope offers true diffraction-limited optics and has an objective lens size that performs well in lunar, planetary and deep sky viewing situations.\u003cbr\u003e\u003cbr\u003e Featuring an air-spaced triplet optical design that virtually eliminates chromatic aberrations, this telescope generates brilliant high-contrast images by combining genuine HOYA extra-low dispersion (ED) glass and proprietary EMD enhanced multi-layer coatings on all optical surfaces.\u003c\/p\u003e\n\u003ccenter\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cstrong\u003eExplore Scientific 102mm f\/7 Essential Series APO Triplet Refractor Features...\u003c\/strong\u003e\u003c\/span\u003e\u003c\/center\u003e\n\u003cul\u003e\n\u003cli\u003eThe Explore ED102 telescope comes with a white aluminum tube with black accents.\u003c\/li\u003e\n\u003cli\u003eExplore Scientific Air-Spaced Apochromatic Triplets have true APO optic and are diffraction limited at .25PV or better.\u003c\/li\u003e\n\u003cli\u003eGenuine ED glass from Hoya Japan is used on all ED APO Triplets at Explore, for superb quality and light throughput.\u003c\/li\u003e\n\u003cli\u003eEnhanced Multi-Layer Coatings (EMD) are deposited on optical elements to boost contrast and eliminate light scatter; and contrast is further enhanced with the installation of matte black knife-edge baffles in the optical tube assembly.\u003c\/li\u003e\n\u003cli\u003e102mm models come with heavy-duty 2\" dual-speed focusers.\u003c\/li\u003e\n\u003cli\u003eThe included 2\" diagonal has a precision-polished mirror with enhanced 99% dielectric coatings.\u003c\/li\u003e\n\u003cli\u003eTo attach your Explore Scientific Air-Spaced Triplet telescope to a variety of mounts, we have included the \"Vixen-style\" dovetail. The \"Vixen-style\" plate fits mounts made by Explore, Meade, Celestron, Vixen \u0026amp; others.\u003c\/li\u003e\n\u003c\/ul\u003e\nOPT Product Number: \u003cstrong\u003eES-ED10207-02\u003c\/strong\u003e\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eAperture: 102mm (4\")\u003c\/li\u003e\n\u003cli\u003eFocal Ratio: f\/7\u003c\/li\u003e\n\u003cli\u003eFocal Length: 714mm\u003c\/li\u003e\n\u003cli\u003eApochromatic triplet that is completely free of chromatic aberration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eES 102mm Essential Series Apo Triplet Refractor OTA\u003c\/li\u003e\n\u003cli\u003eHeavy Duty 2\" Dual Speed Focusers\u003c\/li\u003e\n\u003cli\u003e2\" Diagonal\u003c\/li\u003e\n\u003cli\u003eVixen Style Dovetail\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cstyle\u003e\u003c\/style\u003e\n\u003cstyle\u003e\u003c\/style\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":44913508618,"sku":"ES-ED10207-02","price":1199.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/ES-102MM-F-7-refeactor-1.jpg?v=1509389504"},{"product_id":"tele-vue-np127-fli-f-5-3-imaging-refractor","title":"Tele Vue NP 127 FLI f\/5.4 Petzval Refracting Telescope","description":"\u003ch2 style=\"text-align: center;\"\u003eTele Vue NP127fli 5\" Imaging Refractor\u003c\/h2\u003e\n\u003cp\u003eThe Televue NP127fli is a 5 inch apochromatic refractor designed specifically for imaging with a FLI Proline Camera, Atlas Focuser \u0026amp; Centerline filter wheel. A combination of an ultra flat field of view, short focal length resulting in a fast f\/ 5.3 design pairs flawlessly with the FLI PL16803 camera but will work with perfection with any FLI Proline camera of your choosing.\u003c\/p\u003e\n\u003cp\u003eWeighing in under 16 pounds the NP127 is a highly portable precision imaging telescope. Special placement of the built in Large Field Corrector sits inside of the FLI Atlas focuser putting it in a prime position for use with this particular equipment combination and your choice of FLI Proline CCD camera. All connections are acheived with FLI's Zero Tilt Adapter system and Tele Vue's proprietary image tilt corrector is built into this specifically designed refractor allowing for precision adjustment of the imaging plane bringing out the absolute best. While every NP127fli is adjusted for perfection prior to shipment, adjustments are easily made should they be necessary.\u003c\/p\u003e\n\u003cp\u003e*\u003cem\u003ePlease note that all FLI equipment noted above is sold separately.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Tele Vue","offers":[{"title":"Default Title","offer_id":44916917130,"sku":"TE-NPF-5055","price":7668.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/935c10d21408f4f938e5f9b9f41d9a3c.jpg?v=1553308713"},{"product_id":"explore-scientific-80mm-fcd100-refractor","title":"Explore Scientific 80mm FCD100 f\/6 ED APO Triplet Refractor","description":"\u003cp\u003eExpose the wonder of Earth's celestial neighborhood with the Explore Scientific 80mm FCD100 Refractor. You'll experience the beauty of the barren lunar landscape, the smooth elegance of Saturn's ring structure, the most luminous deep sky objects in the Messier catalog, and more!\u003cbr\u003e\u003cbr\u003eFor all intents and purposes, the 80mm FCD100 is the same instrument as the Explore Scientific 80mm Essential Series Refractor, but with higher quality optics. Explore Scientific uses Hoya FCD100 extra-low dispersion (ED) glass which has characteristics analogous with Ohara FPL-53 glass. With a true diffraction-limited optical design and compact size, the 100mm FCD100 is a premium quality refractor that has been made to inspire impromptu stargazing adventures.\u003cbr\u003e\u003cbr\u003eBy combining Hoya FCD100 optics with Explore Scientific's proprietary EMD enhanced multi-layer coatings on all optical surfaces, the 80mm FCD100 air-spaced triplet refractor produces radiant images with high contrast while avoiding chromatic aberrations almost entirely.\u003cbr\u003e\u003cbr\u003eThis incredible little scope also comes with a 2.5\" Hexagonal focuser that features an extremely rigorous design and support for up to 10 lbs. of accessories.\u003cbr\u003e\u003cbr\u003eEven though the 80mm FCD100 is an outstanding telescope by itself, it is also small enough to mount on a larger instrument. This gives you flexibility when Astro-Imaging by splitting guiding and imaging responsibilities between the two scopes.\u003c\/p\u003e\n\u003cp\u003eManufacturer #\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003eES-FCD100-0806-01\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003c!-- split --\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAperture: 80 mm\u003c\/li\u003e\n\u003cli\u003eFocal Ratio: f\/6\u003c\/li\u003e\n\u003cli\u003eFocal Length: 480 mm\u003c\/li\u003e\n\u003cli\u003eTop quality Hoya FCD 100 Glass Optics\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eExplore Scientific 80 mm FCD100 f\/6 Refractor OTA\u003c\/li\u003e\n\u003cli\u003e2\" Star Diagonal\u003c\/li\u003e\n\u003cli\u003e2.5\" Hexagonal Focuser\u003c\/li\u003e\n\u003cli\u003e1.25\" Eyepiece Adapter\u003c\/li\u003e\n\u003cli\u003eVixen-style Dovetail\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":44932261258,"sku":"ES-FCD100-0806-02","price":1449.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/e838e5ef09f6124476a1b339cddcb40d.jpg?v=1500496599"},{"product_id":"tele-vue-tv-76-green-ota-telescope","title":"Tele Vue TV-76 Green OTA Telescope","description":"\u003cp\u003eThe Televue-76 combines the Pronto's compact size with the APO optical performance of the Televue-85. The combination of the apochromatic doublet lens and the special dispersion glass come together in the genius of the Tele Vue design to provide a stunning 5.5-degree rich-field with delicate jewel-like stars.\u003c\/p\u003e\n\u003cp\u003eThe apochromatic performance of the new Nagler designed, fully multi-coated 2-element objective and 2\" Everbrite diagonal produce natural stellar and planetary color rendition even at the highest useful powers. The diagonal itself is known for its legendary full 99% reflectivity properties and permitting the use of long focal length 2\" eyepieces. Whether you're pushing beyond the theoretical magnification limits of 160x or taking your breath away with incredibly low power, picture window views of the heavens, the TV-76 is there to deliver.\u003c\/p\u003e\n\u003cp\u003eThe Televue-76 isn't only a night owl. You'll love this telescope for bird watching and nature studies, too. The included 20mm TeleVue Plossl eyepiece provides outstanding scenic views - from the nesting eagles to the sailing ships. The small size and light weight of the TV76 permit the use of lighter-duty tripods for easy field carrying and transportation, making it an ideal companion for nature hikes, vacation trips, and travel. The padded shoulder bag provides protection and room for the scope and six eyepieces, and this true rich field telescope can even be considered \"carry on\" luggage.\u003c\/p\u003e\n\u003cp\u003eAs incredible as the Televue-76 performs, it the lasting qualities that count when it comes to making a serious scope investment. Not only is the TV76 a work of optical art - but mechanical as well. The 2\" rack and pinion focuser was designed with a brass, non-marring clamp ring instead of a single set screw. Not only will this hold your accessories more securely in place, but it won't mar the barrel of your prized optics - and neither will the 1.25\" adapter. The focuser glides smoothly and cleanly, with just enough tension to keep from making corrections too quickly - yet loose enough to keep from feeling \"stiff\" in cold weather. By including simple standard equipment such as split-ring tube holder and tripod adapter, you can easily mount it to an optional photo tripod or enjoy the optional lightweight and transportable Televue TelePod with your system.\u003c\/p\u003e\n\u003cp\u003eBy designing the tube with a split ring, photographers will love the Televue TV-76, because it can easily be moved in the adapter when balancing a camera and accessories. For those who are looking for an outstanding telephoto lens, optional Televue adapters will quickly turn the TV76 into a 480mm (9.6x) f\/6.3 performer worthy of your best nature and sky shots. If you demand high-quality optics? This is the scope for you.\u003c\/p\u003e\n\u003cp\u003eAll Televue products are covered by a Five Year Worldwide Limited Product Warranty! Always be sure to save your original packaging materials should you need to return any Televue product for warranty or repair.\u003c\/p\u003e","brand":"Tele Vue","offers":[{"title":"Default Title","offer_id":2512547348490,"sku":"TE-GXO-3065","price":1734.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/Tele-Vue-TV-76-Green-OTA-Telescope.jpg?v=1520275011"},{"product_id":"explore-scientific-127mm-fcd100-triplet","title":"Explore Scientific 127mm f\/7.5 CF FCD100 Triplet Refractor Telescope","description":"\u003cp\u003eThe Explore Scientific 127mm f\/7.5 CF Triplet APO Refractor Telescope with Hoya FCD100 optics and Integrated Dew Shield is a fantastic telescope for both visual observation and astrophotography.\u003c\/p\u003e\n\u003cp\u003eReveal celestial wonders like the desolate beauty of the lunar terrain, the serene structure of Saturn’s rings or the brightest deep sky treasures of the Messier catalog with Explore Scientific’s FCD100 Series 127mm f\/7.5 Air-Spaced Triplet in lightweight Carbon Fiber!\u003c\/p\u003e\n\u003cp\u003eThis telescope has all the great features of the original EDT-127075-CF but includes genuine HOYA's premium FCD100 ED glass which is nearly identical in characteristics as OHARA's FPL-53. Relying on technological innovation, they have successfully launched the mass production of high-performance optical glass at the apex of the FCD family. Combining it with optical glass of high refractive index allows us to achieve unprecedented advanced chromatic aberration correction. HOYA FCD100 is considered one of the premier ED glass types available.\u003c\/p\u003e\n\u003cp\u003eHaving a true diffraction-limited optical design and sized to encourage spontaneous stargazing sessions, this high-quality telescope is a perfect grab-and-go instrument for exploring the skies. Featuring an air-spaced triplet optical design that virtually eliminates chromatic aberrations, this telescope generates brilliant high-contrast images by combining genuine HOYA FCD100 extra-low dispersion (ED) glass and proprietary EMD enhanced multi-layer coatings on all optical surfaces. In addition, this amazing scope also includes a new 2.5-inch Hexagonal focuser with very rigid design and strong support. Up to 10-pounds of gear can be loaded onto this focuser.\u003c\/p\u003e\n\u003cp\u003eThis 127mm telescope is designed to work with \u003ca href=\"https:\/\/optcorp.com\/products\/explore-scientific-3-fld-flattener-7x-focal-red-for-apo\" target=\"_blank\"\u003eExplore Scientific’s 3-inch Field Flattener\/0.7x Focal Reducer\u003c\/a\u003e, though an \u003ca href=\"https:\/\/optcorp.com\/products\/explore-scientific-adapter-fffr507x-to-hex-focuser\" title=\"Explore Scientific 0.7x Focal Reducer Adapter for 127mm FCD100\" target=\"_blank\"\u003eadditional adapter found here\u003c\/a\u003e is required to thread it directly into the 127mm's stock 2.5\" HEX focuser. Once you integrate the 0.7x Focal Reducer, the telescope reduces down from a 952mm f\/7.5 system to be 666mm at f\/5.25, which is a very fast and well-corrected system for deep sky astrophotography. If you're looking for a flat field for imaging at the full 952mm focal length, the \u003ca href=\"https:\/\/optcorp.com\/products\/ht-sca-fft58-sca-field-flattener\" title=\"HoTech SCA Field Flattener | OPT\" target=\"_blank\"\u003eHoTech SCA Field Flattener\u003c\/a\u003e is a great choice.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003eAdditional Specifications:\n\u003cli\u003eLimiting Magnification: 13\u003c\/li\u003e\n\u003cli\u003eResolution: 0.9 Arcsec\u003c\/li\u003e\n\u003cli\u003eTube Length: 33.25-inches (849 mm)\u003c\/li\u003e\n\u003cli\u003eTube Length with Dew Shield: 41.75-inches (1060 mm)\u003c\/li\u003e\n\u003cli\u003eTube Diameter: 5.7-inches (145mm)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDew Shield Outer Diameter: 7-inches (177mm)\u003c\/li\u003e\n\u003cli\u003eDovetail Style: Vixen\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003e127mm Air Spaced Triplet APO\u003c\/li\u003e\n\u003cli\u003eCarbon Fiber Body — Only 14 lbs.\u003c\/li\u003e\n\u003cli\u003eFocal Ratio: f\/7.5\u003c\/li\u003e\n\u003cli\u003eFocal Length: 952 mm\u003c\/li\u003e\n\u003cli\u003ePremium Hoya FCD100 Optics\u003c\/li\u003e\n\u003cli\u003eIntegrated Dew Shield\u003c\/li\u003e\n\u003cli\u003e2.5-inch HEX R\u0026amp;P 10:1 Focuser\u003c\/li\u003e\n\u003cli\u003e99% Reflectivity 2\" Diagonal\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!-- split --\u003e\n\u003cul\u003eIncluded:\n\u003cli\u003eExplore Scientific 127mm Carbon Fiber f\/7.5 Air Spaced Triplet with Hoya FCD100 optics\u003c\/li\u003e\n\u003cli\u003eIntegrated Dew Shield\u003c\/li\u003e\n\u003cli\u003e2.5-inch HEXagonal Rack and Pinion 10:1 two-speed Focuser\u003c\/li\u003e\n\u003cli\u003eCradle Ring with Handle\u003c\/li\u003e\n\u003cli\u003eVixen Style Dovetail Plate\u003c\/li\u003e\n\u003cli\u003eExplore Finder Scope Base installed on scope\u003c\/li\u003e\n\u003cli\u003e99-percent Reflective 2-inch Diagonal\u003c\/li\u003e\n\u003cli\u003eWeighs 14 lbs.\u003c\/li\u003e\n\u003cli\u003e(Case and Finder Scope NOT Included)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cstyle\u003e\u003c\/style\u003e\n","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":3038204264458,"sku":"ES-FCD100-127075-CF-01","price":3379.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/FCD100_127ED_CF_Feather_Burst_1800x1800_ba983b97-c074-40d8-839d-b8056a4d1534.jpg?v=1625755836"},{"product_id":"sky-watcher-evostar-72-doublet","title":"Sky-Watcher Evostar 72 f\/5.8 Doublet Refracting Telescope with 2\" Focuser","description":"\u003cp\u003eThis is a 72 mm, f\/5.8, Doublet Refracting Telescope with a 2-inch Dual Speed Crayford Focuser.\u003c\/p\u003e\n\u003cp\u003eSky-Watcher Evostar refractors provide the finest images obtainable in their design class. These doublet refractors deliver dramatic, coal-black skies and faithful, contrast-rich views of planetary and deep-space phenomenon that are second to none. These refractors are the logical choice for the discriminating amateur astronomer looking for an investment in advanced instrumentation for exceptional viewing and astrophotography.\u003c\/p\u003e\n\u003cp\u003eIncludes: Tube-ring Attachment hardware with V-Style dovetail plate and an Aluminum case.\u003c\/p\u003e\n\u003cp\u003eThe OTA length is 16.5-inches (419.1 mm)\u003c\/p\u003e\n\u003cp\u003eThe OTA Outer Diameter is 3.5-inches (88.9 mm.)\u003c\/p\u003e\n\u003cp\u003eLens Glass: Matched lens assembly with one ED element, (two elements total.) \u003c\/p\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003e72 mm Apochromatic Refractor with Matched Lens Assembly with One ED Element\u003c\/li\u003e\n\u003cli\u003e420 mm Focal Length (f\/5.8)\u003c\/li\u003e\n\u003cli\u003e2-inch Dual Speed Crayford Focuser\u003c\/li\u003e\n\u003cli\u003eTube-ring Attachment Hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cstyle\u003e\u003c\/style\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":3072904462346,"sku":"SW-S11180","price":540.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/SW-S11180_evostar-72-1.jpg?v=1524781874"},{"product_id":"orion-starblast-62mm-compact-travel-f-8-4-doublet-refracting-ota-telescope","title":"Orion StarBlast 62mm Compact Travel f\/8.4 Quadruplet Refracting OTA Telescope","description":"\u003cp\u003eThis OTA is a Portable Orion StarBlast 62 mm (2.44-Inch) Aperture f\/8.4 Compact Travel Refractor! This high resolution refractor Optical Tube Assembly (OTA) would be a great first telescope for any interested beginner; and its high quality, exceptional performance and compact size will complement any telescope in a more experienced hobbyists' collection of observing gear. \u003c\/p\u003e\n\u003cp\u003eThe first thing you'll notice about this petite performer when taking the StarBlast 62 out of its deluxe foam-lined hard carrying case is its exceptional build quality. This finely crafted refractor telescope is a joy to look at as well as look through! Extremely compact at just over a foot long with its lens shade retracted, the f\/8.4 StarBlast 62 packs a ton of performance into its small telescope body.\u003c\/p\u003e\n\u003cp\u003eThis portable refractor can be used for almost any type of observing. During the day, insert the included 45-degree correct-image diagonal into the StarBlast 62 to make it a perfect deck telescope for scanning the scenic horizon or distant wildlife. It's great for catching sharp, detailed views of birds too! At night, the advanced 4-element, high resolution, fully multi-coated optical design of the StarBlast 62 refractor will let you enjoy great views of the Moon and brighter planets like Jupiter and Saturn. Its substantial f\/8.4 focal ratio provides sharp views of our planet's celestial neighbors in the night sky.\u003c\/p\u003e\n\u003cp\u003eSince this compact refractor makes for a perfect travel telescope, you'll definitely want to bring it along on your next road-trip or camping expedition. From a dark sky site away from glaring city streetlights, the Orion StarBlast 62 yields amazing views of large, faint deep sky objects. Star clusters such as the Pleiades (M45) and the Double-Cluster of Perseus are beautifully framed by the StarBlast 62 when using the supplied 20 mm eyepiece. Adding specialized filters like an H-beta filter (sold separately) lets you track down more elusive deep sky objects such as Barnard's Loop. This small wonder is capable of showing you the entire list of Messier objects from an observing site with reasonably dark skies.\u003c\/p\u003e\n\u003cp\u003eThe 1.25-Inch Crayford focuser of the StarBlast 62 mm Travel Refractor accepts 1.25-inch telescope eyepieces and provides smooth, controlled focus adjustments for sharp, crisp views of any target. Use the included 20 mm Plossl eyepiece to obtain wide, 26x views. The included 4 mm Plossl eyepiece boosts magnification up to a whopping 130x for more powerful views through the 520 mm focal length refractor telescope.\u003c\/p\u003e\n\u003cp\u003eThe StarBlast 62 mm Compact Travel Refractor is very lightweight, tipping the scales at just 3.1-pounds. Mounting options for such a petite telescope are plentiful to say the least, and we've equipped the StarBlast 62 with a narrow (Vixen-style) dovetail mounting block that features a 1\/4\"-20 threaded socket for easy attachment to either dovetail-saddle equipped telescope mounts or standard field or photo tripods.  The included hard, foam-lined carry case will help keep the StarBlast 62 mm Compact Travel Refractor safe and clean during transport, and it features cutouts for the included diagonal and eyepieces. A threaded T-adapter barrel is included for secure attachment of astrophotography accessories and cameras.\u003c\/p\u003e\n\u003cp\u003eEquip yourself for on-the-go stargazing fun with the Orion StarBlast 62 mm Compact Travel Refractor today!\u003c\/p\u003e\n\u003cdiv class=\"tab-content-title\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"tab-content-title\"\u003e\n\u003cstrong\u003e\u003cem\u003eManufacturer's Warranty: \u003c\/em\u003e\u003c\/strong\u003e\u003cem\u003eLimited Manufacturer's Warranty against defects in materials or workmanship for one year from date of purchase. This warranty is for the benefit of the original retail purchaser only.\u003c\/em\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eA Portable 62 mm Refractor\u003c\/li\u003e\n\u003cli\u003e4-Element Lens System \u003c\/li\u003e\n\u003cli\u003eCrayford Focuser, 46-Degree Correct-Image Diagonal\u003c\/li\u003e\n\u003cli\u003e(2) 1.25-Inch Eyepieces: 20 mm and 4 mm\u003c\/li\u003e\n\u003cli\u003eHard Case Included!\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eOrion StarBlast 62 mm f\/8.4 Compact Travel Refractor OTA\u003c\/li\u003e\n\u003cli\u003eHard Carry Case\u003c\/li\u003e\n\u003cli\u003e(2) 1.25-Inch Plossl Eyepieces: 20 mm and 4 mm \u003c\/li\u003e\n\u003cli\u003e1.25-Inch Diagonal: Deluxe 45-Degree Correct-Image Prism \u003c\/li\u003e\n\u003cli\u003eT-adapter Barrel\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eStarry Night Special Edition\u003c\/em\u003e - Astronomy Software\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"Orion","offers":[{"title":"Default Title","offer_id":12282695942208,"sku":"OR-10149","price":399.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/Orion_StarBlast_62mm_Travle_Refractor_OTA.jpg?v=1530054581"},{"product_id":"orion-grab-n-go-80mm-f-6-triplet-refracting-telescope","title":"Orion Grab-n-Go 80mm f\/6 Triplet Refracting Telescope","description":"\u003cul\u003e\n\u003cli\u003eAn impressive setup for visual use of the Orion ED80T CF 80mm triplet apochromatic refractor telescope\u003c\/li\u003e\n\u003cli\u003eComplete value package comes with everything you need for pleasantly portable high resolution viewing of the night sky with the beautiful Orion ED80T CF carbon fiber telescope\u003c\/li\u003e\n\u003cli\u003eIncluded Orion VersaGo II mount and adjustable-height tripod provides a stable foundation with smooth altazimuth motion\u003c\/li\u003e\n\u003cli\u003eAmazingly, the entire setup weighs just 20 lbs. for convenient grab-n-go transportability anywhere dark skies beckon\u003c\/li\u003e\n\u003cli\u003eIncludes a wide-field 2\" 26mm Q70 telescope eyepiece which transmits detailed celestial scenes with stunning clarity, an EZ Finder II reflex sight for EZ aiming of the ED80T CF telescope, a 90deg 2\" mirror star diagonal, Starry Night astronomy software, and more!\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eSuper portable 80 mm triplet refractor to take to your favorite dark sky spot\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eOrion ED80T CF refractor telescope optical tube assembly (OTA)\u003c\/li\u003e\n\u003cli\u003eThreaded objective dust cap\u003c\/li\u003e\n\u003cli\u003e2\" to 1.25\" eyepiece adapter \u003c\/li\u003e\n\u003cli\u003eHard foam-lined carry case\u003c\/li\u003e\n\u003cli\u003eDust caps\u003c\/li\u003e\n\u003cli\u003eOrion VersaGo II Altazimuth mount and tripod\u003c\/li\u003e\n\u003cli\u003eOrion 2\" 26mm Q70 telescope eyepiece\u003c\/li\u003e\n\u003cli\u003eOrion 2\" Refractor Telescope Mirror Star Diagonal\u003c\/li\u003e\n\u003cli\u003eOrion EZ Finder II reflex sight\u003c\/li\u003e\n\u003cli\u003eStarry Night Special Edition astronomy software download insert\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Orion","offers":[{"title":"Default Title","offer_id":12282706329664,"sku":"OR-27150","price":1349.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/Orion_Grab-n-Go_80mm_Triplet_Refracting_Telescope.jpg?v=1530055549"},{"product_id":"takahashi-fsq-85edx-flat","title":"Takahashi FSQ-85EDX f\/5.3 Petzval Refracting Telescope - With Flattener","description":"\u003cp\u003eThe \"Baby Q\" Takahashi FSQ85ED telescope is the smallest member of the FSQ Series of flat field astrographs. Designed from the ground up for digital imaging. The Baby Q is the go anywhere, portable astrograph. Weighing less than 9 pounds and measuring 12.68” [322mm]  when collapsed, this telescope will fit under an airline seat or fit easily into an overhead compartment for ultimate portability.\u003c\/p\u003e\n\u003cp\u003eThe Takahashi FSQ-85ED telescope comes equipped with a newly designed heavy-duty 78mm focuser with a built-in camera angle adjuster. Designed for all applications in mind, the focuser will lift your equipment, and keep it there without slipping.\u003cspan\u003e Inside the aluminum tube, you'll find Knife-edge Baffles that block off-axis light and provide maximum contrast. The scope has a significantly longer back focus at more than 200mm to accommodate most medium format CCD systems and even allows the use of binoviewers! \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTakahashi redesigned the optical system in the Takahashi FSQ85ED F5.3 Astrograph Telescope to a modified four element double ED Petzval system. By adding a second doublet inside the tube the removing any astigmatism and acts as a field flattener. The Takahashi FSQ85ED F5.3 Astrograph Telescope optical system is incredible for imaging - providing wide, flat fields, high contrast, and no lateral color. Color correction from the near UV to the near IR ensures tight stellar images across the entire color range\u003c\/p\u003e\n\u003cp\u003eThere there is also an option to purchase this telescope with the Takahashi FSQ-85EDX Flattener. This flattener will expand the corrected image circle from a\u003cspan\u003e 28mm diameter to a 44mm diameter to fully cover any full frame sensor.\u003c\/span\u003e\u003c\/p\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003ePerfect for travel\u003c\/li\u003e\n\u003cli\u003eLong Back 56mm back focus\u003c\/li\u003e\n\u003cli\u003eCorrected for APS-C sensors\u003c\/li\u003e\n\u003cli\u003eFast Focal Ratio for light gathering efficiency\u003c\/li\u003e\n\u003cli\u003eModular Optical performance with option accessories\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cstyle\u003e\u003c\/style\u003e","brand":"Takahashi","offers":[{"title":"Default Title","offer_id":12416706084928,"sku":"TK-TQE08541","price":4280.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/Takahashi-FSQ-85EDX-Astrograph-Refractor-1.jpg?v=1630683124"},{"product_id":"sky-watcher-evostar-150dx-f-8-doublet-refracting-telescope","title":"Sky-Watcher Evostar 150DX f\/8 Doublet Refracting Telescope","description":"\u003cp\u003e\u003cstrong\u003eThis Refracting Telescope ED Doublet has a 150 mm (5.9-inch) Aperture with two matched elements\u003c\/strong\u003e, one which is an Extra-low Dispersion (ED) element. It has a 1200 mm Focal Length with an f\/8 Focal Ratio.\u003c\/p\u003e\n\u003cp\u003eThis refractor sports a Dual-speed 3.4-inch Rack-and-Pinion Focuser and has tube-ring attachment hardware with a D-style dovetail plate.\u003c\/p\u003e\n\u003cp\u003eThese doublet refractors deliver dramatic, coal-black skies and faithful, contrast-rich views of planetary and deep-space phenomenon that are second to none.\u003c\/p\u003e\n\u003cp\u003eSky-Watcher Evostar refractors are the logical choice for the discriminating amateur astronomer looking for an investment in advanced instrumentation for exceptional viewing and astrophotography.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003eCalifornia Residents: Proposition 65 Warning: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.\u003c\/li\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003e150 mm Apochromatic Refractor\u003c\/li\u003e\n\u003cli\u003eMatched Lens Assembly with one ED Element\u003c\/li\u003e\n\u003cli\u003e1200 mm Focal Length \/ f\/8 Focal Ratio\u003c\/li\u003e\n\u003cli\u003eDual-speed 3.4-inch Rack-and-Pinion Focuser\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003e150 mm Apochromatic Refractor\u003c\/li\u003e\n\u003cli\u003eMatched Lens Assembly with one ED Element\u003c\/li\u003e\n\u003cli\u003eDual-speed 3.4-inch Rack-and-Pinion Focuser\u003c\/li\u003e\n\u003cli\u003eTube-ring attachment hardware with D-style dovetail plate\u003c\/li\u003e\n\u003cli\u003eAluminum case\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":12416937590848,"sku":"SW-S11195","price":4100.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/Sky-Watcher-Evostar-150DX-f-8-Doublet-Refracting-Telescope.jpg?v=1625867158"},{"product_id":"borg-107fl-f3-9ed-astrograph-feather-touch-focuser","title":"Borg 107FL F3.9ED Astrograph - Feather Touch Focuser","description":"\u003cp\u003eThe BORG 107 mm F3.9 Astrograph is a very unique 4-inch portable telescope. Boasting a small size for easy transportation (including airline and overseas expeditions), this astrograph is the perfect telescope for those needing a portable, high-quality optical tube\u003cspan data-mce-fragment=\"1\"\u003e that can support very large image circle of up to 55mm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e107 mm aperture\u003c\/li\u003e\n\u003cli\u003e6-element advanced Petzval optical system, including one fluorite and one ED elements\u003c\/li\u003e\n\u003cli\u003eCovers up to a 55 mm diagonal sensor\u003c\/li\u003e\n\u003cli\u003eJapanese-made high quality carbon fiber tube\u003c\/li\u003e\n\u003cli\u003eFeatherTouch True 3-inch focuser (FTF3215B-A) comes installed\u003c\/li\u003e\n\u003cli\u003eM57 camera rotator included\u003c\/li\u003e\n\u003cli\u003eBack focus : 60 mm from M57 camera rotator thread\u003c\/li\u003e\n\u003cli\u003e2-inch-long carrying bag\u003c\/li\u003e\n\u003cli\u003eFits 115 mm ID mounting rings (optional)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eNote: If you need tube rings, the Borg can use the PrimaLuceLab 115 mm PLUS Support rings:  \u003ca href=\"https:\/\/optcorp.com\/products\/primalucelab-plus-support-rings\" target=\"_blank\" title=\"https:\/\/optcorp.com\/products\/primalucelab-plus-support-rings-115\" rel=\"noopener noreferrer\"\u003e\u003cspan style=\"color: #ff0000;\"\u003ePLL-PLLANSU115P\u003c\/span\u003e \u003c\/a\u003e\n\u003c\/h3\u003e\n\u003cp\u003e-\u003c\/p\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eTelescope Aperture: 107 mm\u003c\/li\u003e\n\u003cli\u003eTelescope Focal Ratio: f\/3.9\u003c\/li\u003e\n\u003cli\u003eTelescope Focal Length: 420mm\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFeatherTouch True 3-inch focuser\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eCovers sensor diagonals up to 55 mm \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eBORG 107FL F3.9ED Astrograph Optical Tube\u003c\/li\u003e\n\u003cli\u003eFeather Touch Focuser (FTF-3215B-A) as standard\u003c\/li\u003e\n\u003cli\u003e21-inch-long carrying bag\u003c\/li\u003e\n\u003cli\u003eM57 camera rotator\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Borg","offers":[{"title":"Default Title","offer_id":17993660006469,"sku":"BG-B10739F","price":4595.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/Untitled_design_-_2020-01-17T152607.778.png?v=1579303592"},{"product_id":"borg-55fl-f3-6-astrograph-with-helical-focuser","title":"Borg 55FL F3.6 Astrograph with Helical Focuser","description":"\u003cp\u003eThe BORG 55mm F3.6 Astrograph is a very unique portable telescope. Boasting a small size for easy transportation (including airline and overseas expeditions), this astrograph is the perfect telescope for those needing a portable, high-quality optical tube.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e55mm aperture\u003c\/li\u003e\n\u003cli\u003e6-element advanced optical system, including one fluorite\u003c\/li\u003e\n\u003cli\u003eJapanese-made high quality carbon fiber tube\u003c\/li\u003e\n\u003cli\u003eBorg helical focuser\u003c\/li\u003e\n\u003cli\u003eM57 camera rotator included\u003c\/li\u003e\n\u003cli\u003eBack focus : 60mm from M57 camera rotator thread\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eTelescope Aperture: 55mm\u003c\/li\u003e\n\u003cli\u003eTelescope Focal Ratio: f\/3.6\u003c\/li\u003e\n\u003cli\u003eTelescope Focal Length: 200mm\u003c\/li\u003e\n\u003cli\u003e43mm corrected image circle\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eBORG 55FL F3.6ED Astrograph Optical Tube\u003c\/li\u003e\n\u003cli\u003eM57 camera rotator\u003c\/li\u003e\n\u003cli\u003eMounting bracket\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Borg","offers":[{"title":"Default Title","offer_id":18859978424389,"sku":"BG-62581","price":1575.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/62581.jpg?v=1545333041"},{"product_id":"borg-55fl-f3-6-astrograph-with-feathertouch-focuser","title":"Borg 55FL F3.6 Astrograph with Feathertouch Focuser","description":"\u003cp\u003eThe BORG 55mm F3.6 Astrograph is a very unique portable telescope. Boasting a small size for easy transportation (including airline and overseas expeditions), this astrograph is the perfect telescope for those needing a portable, high-quality optical tube.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e55mm aperture\u003c\/li\u003e\n\u003cli\u003e6-element advanced optical system, including one fluorite\u003c\/li\u003e\n\u003cli\u003eJapanese-made high quality carbon fiber tube\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFeathertouch Focuser - M57\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eM57 camera rotator included\u003c\/li\u003e\n\u003cli\u003eBack focus : 60mm from M57 camera rotator thread\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eChoose your accent color: Sunrise Blue or Sunset Orange\u003c\/li\u003e\n\u003cli\u003eTelescope Aperture: 55mm\u003c\/li\u003e\n\u003cli\u003eTelescope Focal Ratio: f\/3.6\u003c\/li\u003e\n\u003cli\u003eTelescope Focal Length: 200mm\u003c\/li\u003e\n\u003cli\u003e43mm corrected image circle\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eBORG 55FL F3.6ED Astrograph Optical Tube\u003c\/li\u003e\n\u003cli\u003eM57 camera rotator\u003c\/li\u003e\n\u003cli\u003eFeathertouch Focuser - M57\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Borg","offers":[{"title":"Sunrise Blue","offer_id":18860192268357,"sku":"BG-B5536FTF-SB","price":1795.0,"currency_code":"USD","in_stock":false},{"title":"Sunset Orange","offer_id":18860194529349,"sku":"BG-B5536FTF-SO","price":1795.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/B5536FTF-SB.jpg?v=1545335581"},{"product_id":"takahashi-foa-60-f-8-8-doublet-refractor-ota-telescope","title":"Takahashi FOA-60 f\/8.8 Doublet Refractor OTA Telescope","description":"\u003cp\u003eTAKAHASHI FOA-60 ORTHO APOCHROMATIC REFRACTOR\u003c\/p\u003e\n\u003cp\u003eThe FOA-60 is a new compact apochromatic fluorite doublet refractor from Takahashi.  The telescope features a 60 mm aperture and a 530 mm focal length.  (It is also available with a 1.7X extender, which increases the focal length to 901 mm.  The version with the 1.7X extender is known as the FOA-60Q.)  \u003c\/p\u003e\n\u003cp\u003eThe spacing of the doublet elements is such that the correction of the spherical aberrations is similar to that found in the much larger TOA series.  This innovative design results in a Strehl ratio in excess of 96-percent for the base unit - and over 99-percent with the extender.\u003c\/p\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCompact design for relatively long focal length, making it ideal for transport\u003c\/li\u003e\n\u003cli\u003eOutstanding visual and photographic performance, providing a 44 mm diameter image circle for full frame imaging\u003c\/li\u003e\n\u003cli\u003eAvailable with a 1.7x extender and a 0.93x flattener\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eImage Note:\u003c\/strong\u003e  FOA-60 OTA Shown in use.  Mount, tripod, tube holder, and finder  shown for use only and are not included.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Takahashi","offers":[{"title":"Default Title","offer_id":19052898615365,"sku":"TK-TFA06010","price":1580.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/TK-TFA06010_Takahashi_FOA-60_f-8-8_Doublet_Refractor_OTA_Telescope.JPG?v=1547662288"},{"product_id":"takahashi-foa-60q-f-8-8-doublet-refractor-ota-telescope-with-1-7x-extender","title":"Takahashi FOA-60Q f\/8.8 Doublet Refractor OTA Telescope with 1.7x Extender","description":"\u003cp\u003eTAKAHASHI FOA-60Q ORTHO APOCHROMATIC REFRACTOR with a 1.7x EXTENDER:\u003c\/p\u003e\n\u003cp\u003eThe FOA-60Q is a new compact apochromatic fluorite doublet refractor from Takahashi.  The base telescope features a 60 mm aperture and a 530 mm focal length.  It has a 1.7x extender, which increases the focal length to 901 mm. \u003c\/p\u003e\n\u003cp\u003eThe spacing of the doublet elements is such that the correction of the spherical aberrations is similar to that found in the much larger TOA series.  This innovative design results in a Strehl ratio in excess of 96-percent for the base unit and over 99-percent with the extender.\u003c\/p\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCompact design for relatively long focal length, making it ideal for transport\u003c\/li\u003e\n\u003cli\u003eOutstanding visual and photographic performance, providing a 44 mm diameter image circle for full frame imaging\u003c\/li\u003e\n\u003cli\u003eAvailable with a 0.93x flattener\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eImage Note:\u003c\/strong\u003e  FOA-60 OTA (without the 1.7x Extender -Q) Shown in use.  Mount, tripod, tube holder, and finder shown for use only and are not included.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Takahashi","offers":[{"title":"Default Title","offer_id":19053496074309,"sku":"TK-TFA06100","price":2340.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/TK-TFA06010_Takahashi_FOA-60_f-8-8_Doublet_Refractor_OTA_Telescope_b34b5d7b-c7b0-4c1c-af8d-90e8819c3061.JPG?v=1547664566"},{"product_id":"wo-gt81-apo-refractor-gold","title":"William Optics Gran Turismo 81 APO Triplet Refractor Telescope - Gold","description":"\u003cp\u003eThe William Optics Gran Turismo 81 Triplet is designed to deliver incredible image quality in a compact package. Sitting at a respectable ratio of f\/5.9, this FPL53 triplet is well-balanced in light-gathering power. This is no ordinary refractor.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eOptically Unbeatable\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTriplet air-spaced objective (FPL-53) in adjustable CNC machined ultra high precision lens cell.\u003c\/li\u003e\n\u003cli\u003eExtremely sharp.\u003c\/li\u003e\n\u003cli\u003eExcellent color correction.\u003c\/li\u003e\n\u003cli\u003eEach lens is Fully Multi-Coated with a special super-high transmission coating (STM Coating) on all surfaces.\u003c\/li\u003e\n\u003cli\u003eThis F\/5.9 lens is ideal for astrophotography.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eR\u0026amp;P Focuser\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e2.5” R\u0026amp;P Ultra robust focuser with 1:10 dual speed: a treat to use during astrophotography. No image shifting! Heavy duty: perfect for your accessories.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSimply Beautiful Finish\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003ePure William Optics quality fit and finish powder-painted white CNC-machined aluminum tube, gold trim finish, retractable dew shield, dew shield cap.\u003c\/p\u003e\n\u003cp\u003eTop quality anodizing.\u003c\/p\u003e\n\u003cp\u003eVery compact for carrying on flights.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAttention to Details\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e2\" \u0026amp; 1.25\" adapter included in the price.\u003c\/p\u003e\n\u003cp\u003eAnti-marring brass compression rings.\u003c\/p\u003e\n\u003cp\u003e90mm mounting rings are optional.\u003c\/p\u003e\n\u003cp\u003eThough you will never need it, you have a 2-year warranty from WO and the certainty that we will be there to assist you even beyond that, if you need!\u003c\/p\u003e\n\u003ch3\u003e\n\u003cstrong\u003ePackage Contents\u003c\/strong\u003e\u003cstrong\u003e:\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp\u003eMounting Rings\u003c\/p\u003e\n\u003cp\u003eGT81 OTA\u003c\/p\u003e\n\u003cp\u003eCNC Carry Handle Bar\u003c\/p\u003e\n\u003cp\u003eDovetail Plate\u003c\/p\u003e\n\u003cp\u003e2.5” R\u0026amp;P Focuser\u003c\/p\u003e\n\u003cp\u003eBahtinov Mask Cover\u003c\/p\u003e\n\u003cp\u003eSoft Carry Case\u003c\/p\u003e\n\u003cp\u003eTwo-year, no fuss warranty and constant customer service!\u003c\/p\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eGT81 APO\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2\" \u0026amp; 1.25\" Adapter Included\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eBahtinov Mask Included\u003c\/li\u003e\n\u003cli\u003eSTM Multi-Coated Lenses\u003c\/li\u003e\n\u003cli\u003ef\/5.9\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eThis is the Gold version\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\n\u003cp\u003eMounting Rings\u003c\/p\u003e\n\u003cp\u003eGT81 OTA\u003c\/p\u003e\n\u003cp\u003eCNC Carry Handle Bar\u003c\/p\u003e\n\u003cp\u003eDovetail Plate\u003c\/p\u003e\n\u003cp\u003e2.5” R\u0026amp;P Focuser\u003c\/p\u003e\n\u003cp\u003eBahtinov Mask Cover\u003c\/p\u003e\n\u003cp\u003eSoft Carry Case\u003c\/p\u003e\n\u003cp\u003eTwo-year, no fuss warranty and constant customer service!\u003c\/p\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":39260804284485,"sku":"WO-A-F81GTIVGD","price":1538.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/GT81inGold.png?v=1644252094"},{"product_id":"sky-watcher-evostar-150-f-8-apochromatic-refracting-telescope","title":"Sky-Watcher Evostar 150 f\/8 Apochromatic Refracting Telescope","description":"\u003cp\u003e\u003cstrong\u003eThis Refracting Telescope ED Doublet has a 150 mm (5.9-inch) Aperture\u003c\/strong\u003e with two matched elements, one which is an Extra-low Dispersion (ED) element. It has a 1200 mm Focal Length with an f\/8 Focal Ratio.\u003c\/p\u003e\n\u003cp\u003eThis refractor sports a Dual-speed 2-inch Crayford Style Focuser and has tube-ring attachment hardware with a V-style dovetail plate.\u003c\/p\u003e\n\u003cp\u003eThese doublet refractors deliver dramatic, coal-black skies and faithful, contrast-rich views of planetary and deep-space phenomenon that are second to none.\u003c\/p\u003e\n\u003cp\u003eSky-Watcher Evostar refractors are the logical choice for the discriminating amateur astronomer looking for an investment in advanced instrumentation for exceptional viewing and astrophotography.\u003c\/p\u003e\n\u003cp\u003e\u003ci\u003e\u003cstrong\u003eCalifornia Residents: Proposition 65 Warning:\u003c\/strong\u003e\u003c\/i\u003e WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.\u003c\/p\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eThe Evostar 150ED!\u003c\/li\u003e\n\u003cli\u003eA 150 mm Apochromatic Refractor\u003c\/li\u003e\n\u003cli\u003eFocal Length: 1200 mm\u003c\/li\u003e\n\u003cli\u003eFocal Ratio: f\/8\u003c\/li\u003e\n\u003cli\u003eDual-speed 2-Inch Crayford-type Focuser\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eA 150 mm Apochromatic Refractor\u003c\/li\u003e\n\u003cli\u003eMatched Lens Assembly with One ED Element\u003c\/li\u003e\n\u003cli\u003e1200 mm Focal Length (f\/8)\u003c\/li\u003e\n\u003cli\u003eDual-speed 2-Inch Crayford-type Focuser\u003c\/li\u003e\n\u003cli\u003eTube-ring Attachment Hardware with V-style Dovetail Plate\u003c\/li\u003e\n\u003cli\u003eAluminum Case\u003c\/li\u003e\n\u003cli\u003eM48 adapter\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":29182398398533,"sku":"SW-S11190","price":3000.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/Sky-Watcher-Evostar-150--f-10-SCT-Refracting-Telescope_grande_51af91f9-cd28-4f66-b4e1-df7f9c97b8a1.jpg?v=1562178513"},{"product_id":"takahashi-tsa-120-apo-refractor-with-3-inch-feathertouch-focuser-from-si","title":"Takahashi TS-120 120 APO Refractor with 3-inch FeatherTouch Focuser from SI","description":"\u003cp\u003eThe TSA-120 Triplet APO Refractor Telescope with a 3-inch FeatherTouch focuser from Starlight Instruments delivers superior quality optics, all in a portable package! This air-spaced triplet design achieves a high level of apochromatic performance for lunar, planetary and deep sky observing and imaging, delivering very high contrast images with pinpoint stars.\u003c\/p\u003e\n\u003cp\u003eInside the precision-crafted lens cell, you'll find three elements, an FPL-53 Extra-low Dispersion (ED) glass lens placed between two air-spaced extreme quality crown lenses. This Telescope’s ED triplet optics yield excellent high-contrast images, free of chromatic aberration’s violet glow, which often accompany bright stars and planet.\u003c\/p\u003e\n\u003cp\u003eThe TTK-120's short tube make transport and versatile accessory assemblies possible, especially for those using important length. The \u003ca href=\"http:\/\/static.shoplightspeed.com\/shops\/603005\/files\/002050110\/system-chart-tsa-120.pdf?_ga=2.252814537.1587592109.1495127529-1353426823.1495121027\" title=\"TSA-120 System Chart\" target=\"_blank\"\u003esystem chart\u003c\/a\u003e will guide you through the TTK-120's versatile assemblies which all fulfill the requirements of rigidity and flexibility needed by the new imaging devices, including SLR\/DSLR or CCD cameras.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKEY FEATURES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eApochromatic Triplet ED Refractor Optics- \u003c\/strong\u003e120 mm aperture, 900 mm focal length, f\/7.5 refractor-\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulticoated Optics-\u003c\/strong\u003e coated with broadband anti-reflection materials for optimal light transmission and contrast.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRetractable Lens Hoods- \u003c\/strong\u003ereduces dew formation on the lens and improves contrast by shielding the lens from off-axis ambient light.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e3-inch FeatherTouch focuser from Starlight Instruments.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility and Versatility- \u003c\/strong\u003ecompatible with several flatteners, reducers, and extenders, including the TOA-35 Reducer, which converts the telescope to a f\/5.3 imaging platform with a 44 mm image circle.\u003c\/li\u003e\n\u003cli\u003e(Note: Image shows this scope with the Takahashi focuser for sample only, you can purchase that set-up under #TK-TTK12010.)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cstyle\u003e\u003c\/style\u003e","brand":"Takahashi","offers":[{"title":"Default Title","offer_id":31164141961285,"sku":"TK-TTK12010FT","price":6020.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/TK-TTK12010-FT_Takahashi-TSA-120-Triplet-APO-Refractor_with_3-inch_FT_Focuser.jpg?v=1579129503"},{"product_id":"wo-zenithstar-61ii-ota","title":"William Optics ZenithStar 61II Doublet Refracting Telescope - Red","description":"\u003cp\u003eBright and colorful yet smaller than a house cat, the \u003cstrong\u003eWilliam Optics ZenithStar 61II\u003c\/strong\u003e is one of the most portable telescopes on the William Optics market. Weighing only about 3 lb, you can easily take it with you anywhere!\u003c\/p\u003e\n\u003cp\u003eYour telescope’s lens captures true-to-color light and create images with reduced chromatic aberration. It’s designed with FPL-53 glass, which is a form of synthetic fluorite in the closest form to pure fluorite. Capture mesmerizing images with brighter and crisper viewing features.\u003cbr\u003e\u003cbr\u003eWhen combined with a field flattener, this telescope can capture images like those of larger professional telescopes.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eWilliams Optics ZenithStar 61II Special Features\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe full-frame sensor size is approximately 36X24.\u003c\/li\u003e\n\u003cli\u003eA 41 mm diameter image circle.\u003c\/li\u003e\n\u003cli\u003eThe Focuser is 50.8 mm (2-inch), rack and pinion, with 10:1 dual-speed micro focuser and a 75 mm travel length.\u003c\/li\u003e\n\u003cli\u003eA rotatable L mounting bracket.\u003c\/li\u003e\n\u003cli\u003eThe tube length has a range of 230 mm when fully retracted, and 300 mm when fully extended.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003e61 mm (2.41-inch) Aperture.\u003c\/li\u003e\n\u003cli\u003ef\/5.9 Focal Ratio.\u003c\/li\u003e\n\u003cli\u003e3.2 lb - Travel Telescope for Astrophotography and Wildlife Photography.\u003c\/li\u003e\n\u003cli\u003eAdaptable with any DSLR.\u003c\/li\u003e\n\u003cli\u003eThis is the Red Version\u003c\/li\u003e\n\u003cli\u003eInnovative Bahtinov Mask Cover for Easy Focus Assist.\u003c\/li\u003e\n\u003cli\u003eSoft Carry Case Included!\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eWilliam Optics ZenithStar 61 f\/5.9 Doublet Refracting OTA.\u003c\/li\u003e\n\u003cli\u003ePatented Bahtinov Mask Cap Design.\u003c\/li\u003e\n\u003cli\u003eRack and Pinion Focuser 50.8 mm (2-inch), 1:10 Dual Speeds, with 75 mm Travel Length.\u003c\/li\u003e\n\u003cli\u003eCNC Made Mounting Ring.\u003c\/li\u003e\n\u003cli\u003eCAT Handle Bar.\u003c\/li\u003e\n\u003cli\u003e210 mm Dovetail Plate.\u003c\/li\u003e\n\u003cli\u003eSoft Carry Case\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":39261048340549,"sku":"WO-A-Z61IIRD","price":599.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/IMG_5517.png?v=1626299441"},{"product_id":"william-optics-zenithstar-61ii-refractor-telescope-gold-holiday-promo","title":"William Optics ZenithStar 61II Doublet Refractor Telescope w\/ 32mm UniGuide - Grey","description":"\u003cp\u003eBright and colorful yet smaller than a house cat, the \u003cstrong\u003eWilliam Optics ZenithStar 61II\u003c\/strong\u003e is one of the most portable telescopes on the William Optics market. Weighing only about 3 lbs, you can easily take it with you anywhere!\u003c\/p\u003e\n\u003cp\u003eYour telescope’s lens captures true-to-color light and create images with reduced chromatic aberration. It’s designed with FPL-53 glass, which is a form of synthetic fluorite in the closest form to pure fluorite. Capture mesmerizing images with brighter and crisper viewing features.\u003c\/p\u003e\n\u003cp\u003eWhen combined with a field flattener, this telescope can capture images like those of larger professional telescopes.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWilliams Optics ZenithStar 61II Special Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe full-frame sensor size is approximately 36X24\u003c\/li\u003e\n\u003cli\u003eA 41 mm diameter image circle\u003c\/li\u003e\n\u003cli\u003eThe Focuser is 50.8 mm (2-inch), rack and pinion, with 10:1 dual-speed micro focuser and a 75 mm travel length\u003c\/li\u003e\n\u003cli\u003eA rotatable L mounting bracket\u003c\/li\u003e\n\u003cli\u003eThe tube length has a range of 230 mm when fully retracted, and 300 mm when fully extended\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cb\u003eWilliam Optics UniGuide 32mm Guide Scope - Grey\u003c\/b\u003e\u003c\/h4\u003e\n\u003cp\u003eThis William Optics ZenithStar 61II Doublet Refracting Telescope also comes with the UniGuide 32mm Guide Scope\u003c\/p\u003e\n\u003cp\u003eThe William Optics UniGuide slide-based guide scope is a great addition to your William Optics telescope set-up. You'll get the perfect focus you need every time!\u003c\/p\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cb\u003eThis is the grey version\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e61 mm (2.41-inch) Aperture\u003c\/li\u003e\n\u003cli\u003ef\/5.9 Focal Ratio\u003c\/li\u003e\n\u003cli\u003e3.2 lb - Travel Telescope for Astrophotography and Wildlife Photography\u003c\/li\u003e\n\u003cli\u003eAdaptable with any DSLR\u003c\/li\u003e\n\u003cli\u003eInnovative Bahtinov Mask Cover for Easy Focus Assist\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eWilliam Optics ZenithStar 61 f\/5.9 Doublet Refracting OTA - Grey\u003c\/li\u003e\n\u003cli\u003eUniGuide 32mm Guide Scope - Grey\u003c\/li\u003e\n  \u003cli\u003ePatented Bahtinov Mask Cap Design\u003c\/li\u003e\n\u003cli\u003eRack and Pinion Focuser 50.8 mm (2-inch)\u003c\/li\u003e\n\u003cli\u003eCNC Made Mounting Ring\u003c\/li\u003e\n\u003cli\u003eCAT Handle Bar\u003c\/li\u003e\n\u003cli\u003e210 mm Dovetail Plate\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":31954954125381,"sku":"WO-A-Z61IITG-P","price":599.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/z61grey.png?v=1605896442"},{"product_id":"wo-gt81-apo-refractor-red","title":"William Optics Gran Turismo 81 APO Triplet Refractor Telescope - Red","description":"\u003cp\u003eThe William Optics Gran Turismo 81 Triplet is designed to deliver incredible image quality in a compact package. Sitting at a respectable ratio of f\/5.9, this FPL53 triplet is well-balanced in light-gathering power. This is no ordinary refractor.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eOptically Unbeatable\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTriplet air-spaced objective (FPL-53) in adjustable CNC machined ultra high precision lens cell.\u003c\/li\u003e\n\u003cli\u003eExtremely sharp.\u003c\/li\u003e\n\u003cli\u003eExcellent color correction.\u003c\/li\u003e\n\u003cli\u003eEach lens is Fully Multi-Coated with a special super-high transmission coating (STM Coating) on all surfaces.\u003c\/li\u003e\n\u003cli\u003eThis F\/5.9 lens is ideal for astrophotography.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eR\u0026amp;P Focuser\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e2.5” R\u0026amp;P Ultra robust focuser with 1:10 dual speed: a treat to use during astrophotography. No image shifting! Heavy duty: perfect for your accessories.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSimply Beautiful Finish\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003ePure William Optics quality fit and finish powder-painted white CNC-machined aluminum tube, gold trim finish, retractable dew shield, dew shield cap.\u003c\/p\u003e\n\u003cp\u003eTop quality anodizing.\u003c\/p\u003e\n\u003cp\u003eVery compact for carrying on flights.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAttention to Details\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e2\" \u0026amp; 1.25\" adapter included in the price.\u003c\/p\u003e\n\u003cp\u003eAnti-marring brass compression rings.\u003c\/p\u003e\n\u003cp\u003e90mm mounting rings are optional.\u003c\/p\u003e\n\u003cp\u003eThough you will never need it, you have a 2-year warranty from WO and the certainty that we will be there to assist you even beyond that, if you need!\u003c\/p\u003e\n\u003ch3\u003e\n\u003cstrong\u003ePackage Contents\u003c\/strong\u003e\u003cstrong\u003e:\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp\u003eMounting Rings\u003c\/p\u003e\n\u003cp\u003eGT81 OTA\u003c\/p\u003e\n\u003cp\u003eCNC Carry Handle Bar\u003c\/p\u003e\n\u003cp\u003eDovetail Plate\u003c\/p\u003e\n\u003cp\u003e2.5” R\u0026amp;P Focuser\u003c\/p\u003e\n\u003cp\u003eBahtinov Mask Cover\u003c\/p\u003e\n\u003cp\u003eSoft Carry Case\u003c\/p\u003e\n\u003cp\u003eTwo-year, no fuss warranty and constant customer service!\u003c\/p\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eGT81 APO\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2\" \u0026amp; 1.25\" Adapter Included\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eBahtinov Mask Included\u003c\/li\u003e\n\u003cli\u003eSTM Multi-Coated Lenses\u003c\/li\u003e\n\u003cli\u003ef\/5.9\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eThis is the Red version\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\n\u003cp\u003eMounting Rings\u003c\/p\u003e\n\u003cp\u003eGT81 OTA\u003c\/p\u003e\n\u003cp\u003eCNC Carry Handle Bar\u003c\/p\u003e\n\u003cp\u003eDovetail Plate\u003c\/p\u003e\n\u003cp\u003e2.5” R\u0026amp;P Focuser\u003c\/p\u003e\n\u003cp\u003eBahtinov Mask Cover\u003c\/p\u003e\n\u003cp\u003eSoft Carry Case\u003c\/p\u003e\n\u003cp\u003eTwo-year, no fuss warranty and constant customer service!\u003c\/p\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":39260838854725,"sku":"WO-A-F81GTIVRD","price":1538.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/GT81inRed.png?v=1644252051"},{"product_id":"william-optics-flt-156mm-f-7-8-in-blue-feather-touch-3-5-inch-red","title":"William Optics FLT 156mm f\/7.8 - Feather Touch 3.5-Inch - Red","description":"\u003cp\u003e\u003cstrong\u003eThe William Optics FluoroStar 156 imaging\/visual APO Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFLT 156 mm (6.14-inch) Aperture f\/7.8 Triplet Telescope OTA a Feather Touch 3.5-Inch Focuser attached.\u003c\/p\u003e\n\u003cp\u003eIt's f\/7.8 (at f\/5.5 with an APO X0.7 flattener) triplet air spaces (FPL53 Design).\u003c\/p\u003e\n\u003cp\u003eTo automate your focuser: It you are imaging\/ viewing remotely, you can add an Optional Motorized Device to your cart designed for this Feather Touch 3.5-Inch Focuser, \u003cspan\u003e(see #WO-MD-FT35 for price and details).\u003c\/span\u003e\u003c\/p\u003e\n","brand":"William Optics","offers":[{"title":"Default Title","offer_id":39261047947333,"sku":"WO-A-F156RD-FT","price":7898.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/WO-A-FLT156_BU-GD-RD_-FT35-RP37_0a1991a6-ded9-4d45-bafe-938bd0b668aa.jpg?v=1615323996"},{"product_id":"william-optics-flt-156mm-f-7-8-wo-rack-and-pinion-3-7-inch-gold","title":"William Optics FLT 156mm f\/7.8 - WO Rack and Pinion 3.7-Inch - Gold","description":"\u003cp\u003e\u003cstrong\u003eThe William Optics FluoroStar 156 imaging\/visual APO Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFLT 156 mm (6.14-Inch) Aperture f\/7.8 Triplet Telescope OTA with a William Optics 3.7-Inch Rack and Pinion Focuser attached.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt's f\/7.8 (at f\/5.5 with an APO X0.7 flattener) triplet air spaces (FPL53 Design).\u003c\/span\u003e\u003c\/p\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":39261048012869,"sku":"WO-A-F156GD-RP37","price":7398.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/William-Optics-LT-156mm-f7.8-WO-Rack-and-Pinion-3.7-Inch-Gold.jpg?v=1660577777"},{"product_id":"william-optics-flt-156mm-f-7-8-wo-rack-and-pinion-3-7-inch-red","title":"William Optics FLT 156mm f\/7.8 - WO Rack and Pinion 3.7-Inch - Red","description":"\u003cp\u003e\u003cstrong\u003eThe William Optics FluoroStar 156 imaging\/visual APO Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFLT 156 mm (6.14-Inch) Aperture f\/7.8 Triplet Telescope OTA with a William Optics 3.7-Inch Rack and Pinion Focuser attached.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt's f\/7.8 (at f\/5.5 with an APO X0.7 flattener) triplet air spaces (FPL53 Design).\u003c\/span\u003e\u003c\/p\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":39261048078405,"sku":"WO-A-F156RD-RP37","price":7398.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/WO-A-FLT156_BU-GD-RD_-FT35-RP37_350cb5df-f6a8-49c9-8a55-c12f3eb9d5ae.jpg?v=1615324000"},{"product_id":"wo-zenithstar-61ii-ota-gold","title":"William Optics ZenithStar 61II Doublet Refracting Telescope - Gold","description":"\u003cp\u003eBright and colorful yet smaller than a house cat, the \u003cstrong\u003eWilliam Optics ZenithStar 61II\u003c\/strong\u003e is one of the most portable telescopes on the William Optics market. Weighing only about 3 lb, you can easily take it with you anywhere!\u003c\/p\u003e\n\u003cp\u003eYour telescope’s lens captures true-to-color light and create images with reduced chromatic aberration. It’s designed with FPL-53 glass, which is a form of synthetic fluorite in the closest form to pure fluorite. Capture mesmerizing images with brighter and crisper viewing features.\u003cbr\u003e\u003cbr\u003eWhen combined with a field flattener, this telescope can capture images like those of larger professional telescopes.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eWilliams Optics ZenithStar 61II Special Features\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe full-frame sensor size is approximately 36X24.\u003c\/li\u003e\n\u003cli\u003eA 41 mm diameter image circle.\u003c\/li\u003e\n\u003cli\u003eThe Focuser is 50.8 mm (2-inch), rack and pinion, with 10:1 dual-speed micro focuser and a 75 mm travel length.\u003c\/li\u003e\n\u003cli\u003eA rotatable L mounting bracket.\u003c\/li\u003e\n\u003cli\u003eThe tube length has a range of 230 mm when fully retracted, and 300 mm when fully extended.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003e61 mm (2.41-inch) Aperture.\u003c\/li\u003e\n\u003cli\u003ef\/5.9 Focal Ratio.\u003c\/li\u003e\n\u003cli\u003e3.2 lb - Travel Telescope for Astrophotography and Wildlife Photography.\u003c\/li\u003e\n\u003cli\u003eAdaptable with any DSLR.\u003c\/li\u003e\n\u003cli\u003eThis is the Gold Version\u003c\/li\u003e\n\u003cli\u003eInnovative Bahtinov Mask Cover for Easy Focus Assist.\u003c\/li\u003e\n\u003cli\u003eSoft Carry Case Included!\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eWilliam Optics ZenithStar 61 f\/5.9 Doublet Refracting OTA.\u003c\/li\u003e\n\u003cli\u003ePatented Bahtinov Mask Cap Design.\u003c\/li\u003e\n\u003cli\u003eRack and Pinion Focuser 50.8 mm (2-inch), 1:10 Dual Speeds, with 75 mm Travel Length.\u003c\/li\u003e\n\u003cli\u003eCNC Made Mounting Ring.\u003c\/li\u003e\n\u003cli\u003eCAT Handle Bar.\u003c\/li\u003e\n\u003cli\u003e210 mm Dovetail Plate.\u003c\/li\u003e\n\u003cli\u003eSoft Carry Case\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":39261048373317,"sku":"WO-A-Z61IIGD","price":599.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/gold-william-optics-z61ii-telescope.jpg?v=1626299606"},{"product_id":"william-optics-redcat-71-apo-telescope-red","title":"William Optics RedCat 71 APO Telescope - Red","description":"\u003ch3 style=\"text-align: left;\" data-mce-style=\"text-align: left;\"\u003e\u003cstrong\u003eBuilding on the massive success of the RedCat 51, William Optics has proudly announced the all-new RedCat 71!\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp style=\"text-align: left;\" data-mce-style=\"text-align: left;\"\u003e\u003cspan\u003eThe William Optics RedCat71 is a 71-mm f\/4.9 refractor that features a 350mm focal length for fantastic widefield images of the night sky. The optical design is a Petzval design with a doublet front element incorporating FPL-53 glass, plus a single central element and a single rear lens. By using this four-element Petzval design, our WO RedCat71 provides a flat image plane without requiring any additional flattener and the image circle is over 45mm. \u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 style=\"text-align: left;\" data-mce-style=\"text-align: left;\"\u003e\u003cstrong\u003e45mm Image Circle\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp style=\"text-align: left;\" data-mce-style=\"text-align: left;\"\u003e\u003cspan\u003eWO RedCat71 is designed primarily for imaging, making it an astrograph. This scope provides an excellent color correction and pinpoint stars at the very edge of a 45mm image circle. If you want to take images with the best quality, this beautiful and powerful telescope is what you want.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/WO-T-C-71RD-17.jpg?v=1635522439\"\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003eFour-Element Patented Design 2+1+1\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/WO-T-C-71RD-18.jpg?v=1635522564\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSuper Bright Bahtinov Mask\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/WO-T-C-71RD-19.jpg?v=1635522660\" alt=\"\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003eFull Frame \u0026amp; APS-C Compatible\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/WO-T-C-71RD-20.jpg?v=1635522745\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003ePremium Anodizing Finish\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe premium quality of Anodizing finish and calibrated helical focuser with a 2GT gear ring is much more precise than those on typical camera lenses, and it is lockable, making it easy to nail and maintain focus. (2GT standard gear ring, 153 teeth, Diameter 98mm, width 8mm)\u003c\/p\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003e71mm f\/4.9 Astrograph\u003c\/li\u003e\n\u003cli\u003e350mm Focal Length\u003c\/li\u003e\n\u003cli\u003eFPL-53 glass for color-free apochromatic performance\u003c\/li\u003e\n\u003cli\u003e4 elements in 3 groups (2-1-1- configuration; new, unique, patented design - not a conventional objective\/flattener\/reducer design)\u003c\/li\u003e\n\u003cli\u003eCovers 45mm full-frame imaging circle\u003c\/li\u003e\n\u003cli\u003ePrecise helical focusing and camera rotation; includes a 48mm make thread that accepts a wide T-ring.\u003c\/li\u003e\n\u003cli\u003eIncludes mounting rings, 21cm long Red Vixen style dovetail and Cat saddle\u003c\/li\u003e\n\u003cli\u003eWeight = 6.2lbs \/ 2.8kg (OTA only); 8.2lbs \/ 3.7kg (OTA with ring, dovetail and saddle)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/WO-T-C-71RD-16.jpg?v=1635521307\" alt=\"\"\u003e\n\u003cul\u003e\n\u003cli\u003e[A] M48 Dust Cap\/Thread\u003c\/li\u003e\n\u003cli\u003e[B] Tilt Adapter\u003c\/li\u003e\n\u003cli\u003e[C] Camera Angle Rotator\u003c\/li\u003e\n\u003cli\u003e[D] Rotator Tension Knob\u003c\/li\u003e\n\u003cli\u003e[E] Saddle Handlebar (with two M4 thumb screws)\u003c\/li\u003e\n\u003cli\u003e[F] Helical Focuser with 2GT Gear Ring\u003c\/li\u003e\n\u003cli\u003e[G] Arca Swiss\/Vixen Plate\u003c\/li\u003e\n\u003cli\u003e[H] Mounting Rings\u003c\/li\u003e\n\u003cli\u003e[I] Dew Shield with Focus Tension Ring\u003c\/li\u003e\n\u003cli\u003e[J] Super Bright Bahtinov Mask\u003c\/li\u003e\n\u003cli\u003eSoft Carry Case\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":39595050467397,"sku":"WO-T-C-71RD","price":1698.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/WO-T-C-71RD-10.jpg?v=1635520557"},{"product_id":"askar-fra400-quintuplet-apo-astrograph","title":"Askar FRA400 Quintuplet APO Astrograph","description":"\u003cp\u003eThe FRA400 (FRA stands for Flat-field Refractive Astrograph), is a member of a new line of instruments from Sharpstar\/Askar. It is a Quintuplet refractor with 72mm aperture and f\/5.6 focal ratio (400mm focal length), and is ideal for wide-field imaging of the deep sky. Three elements make up the APO objective while the remaining two are in the field-flattener just forward of the focuser.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/1_1_-2_2_31d383d5-c5b5-4791-bb10-48fa02219d18_1024x1024.jpg?v=1674496862\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/165820312596_1024x1024.jpg?v=1674496883\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cb\u003eWhat is an Astrograph?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eAs with other members of the FRA line, this astrograph has a 44mm image circle, ideal for smaller cameras with sensors of 1” or less, with pinpoint stars all the way to the edge of the image plane.\u003c\/p\u003e\n\u003cp\u003eThe FRA400 astrograph has a retractable dew shield, a 3\" rack-and-gear-based high-precision reducer containing a 360-degree rotator, M68×1 thread, a 2\" adapter ring and a 1.25\" visual adapter. The reducer is equipped with a fine focal adjustment function for more precise calibration in practical observation or sky imaging.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/158287917654_ffa6588f-6be5-4b55-a7cf-0379dbb53227_1024x1024.jpg?v=1674496916\"\u003e\u003c\/div\u003e\n\u003cp\u003eThe back focus of FRA600 is 140mm, starting from the base of the mounting thread on the housing to the focal plane. And users don't need to worry about the calculation of back focus when using FRA600, as long as the object in the objective lens is focused.\u003c\/p\u003e\n\u003cp\u003eF\/5.6 is a relatively fast focal ratio for astrophotography use, but for even shorter focal lengths, an ultra focal reducer is included to satisfy the special needs of experienced imagers, yielding f\/3.9 when inserted. This combination supports full-frame imaging and provides even wider fields and dramatically reduces exposure times.\u003c\/p\u003e\n\u003cp\u003eThis fast, extremely portable astrograph is a great value, in many cases approaching performance levels seen in telescopes costing much more.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/164075889440_1024x1024.jpg?v=1674496950\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cb\u003eSpecs\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/160370061212_083a817d-8bde-48a7-aaf4-f55bcf024488_1024x1024.jpg?v=1674497014\" alt=\"\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cb\u003eMechanical Diagram\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/160370058296_7248d65d-e02b-41ab-aa27-51eb24f8fa79_1024x1024.jpg?v=1674497057\" alt=\"\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/160370051031_4c83684e-f3e1-46d3-8e9e-c3a399c09b10_1024x1024.jpg?v=1674497112\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cb\u003eDiagrams\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/160221490774_1024x1024.jpg?v=1674497142\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\" data-mce-fragment=\"1\" data-mce-style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/158288039078_1024x1024.jpg?v=1674497162\" alt=\"\" style=\"float: none;\" data-mce-fragment=\"1\" data-mce-style=\"float: none;\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/158288039078_1024x1024.jpg?v=1674497162\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\" data-mce-fragment=\"1\" data-mce-style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/158288042672_1024x1024.jpg?v=1674497182\" alt=\"\" style=\"float: none;\" data-mce-fragment=\"1\" data-mce-style=\"float: none;\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/158288042672_1024x1024.jpg?v=1674497182\"\u003e\u003c\/div\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eThe FRA400 will simplify and enhance your observing and imaging practice, bringing infinite surprises when exploring the boundless universe\u003c\/li\u003e\n\u003cli\u003eThe FRA is a refractive equipment with built-in flat field correction\u003c\/li\u003e\n\u003cli\u003eThe image quality is optimized to satisfy various observing or imaging purposes\u003c\/li\u003e\n\u003cli\u003ePurchase the \u003ca href=\"https:\/\/optcorp.com\/products\/sharpstar-askar-full-frame-reducer-for-fra400-2-5\" target=\"_blank\"\u003eAskar F3.9 Full Frame Reducer!\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eFRA400 OTA\u003c\/li\u003e\n\u003cli\u003ePair of tube rings\u003c\/li\u003e\n\u003cli\u003eA handle\u003c\/li\u003e\n\u003cli\u003eA dovetail plate\u003c\/li\u003e\n\u003cli\u003eInspection list\u003c\/li\u003e\n\u003cli\u003eManual\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sharpstar \/ Askar","offers":[{"title":"Default Title","offer_id":39684441833541,"sku":"SS-FRA400-56","price":1199.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/1613973894.jpg?v=1639766587"},{"product_id":"askar-fra500-quintuplet-apo-astrograph","title":"Askar FRA500 Quintuplet APO Astrograph","description":"\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/rhswgONQHps\" height=\"315\" width=\"560\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/165820317651_1024x1024.jpg?v=1674496141\"\u003e\u003c\/div\u003e\n\u003cp\u003eAll Askar Flatfield Refractive Astrographs (FRA), incorporates an innovative five-element optical design that yields flat fields and color-free images across the image plane. Compared with its siblings, the 500mm-focal-length refractor has an aperture size of 90mm (f\/5.6), so Askar FRA500 provides a larger aperture for brighter imaging of deep-sky imaging than Askar FRA400.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWhat is an Astrograph?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eAskar FRA500 has inherited the legacies of superior FRA- series designing. It boasts a quintuplet air-spaced APO optical structure, a “three plus two” Petzval lens combination. The front lens group consists of three lenses (including two pieces of ED glass) for excellent color correction. The posterior group - just forward of the focuser - is a field flattener which is composed of two lenses separated by small space which is able to provide fine sharpness across the whole image. The stars at the edges of the field are amazing in this design.\u003c\/p\u003e\n\u003cp\u003eThe second set of lenses is important because it ‘flattens the field’ meaning all rays coming through the lens are not distorted or curved. This effect is especially noticeable in stars at the edge of a field of view viewed through a short focal length refractor: without a flattener, stars appear deformed and stretched towards the edges of an image. A field flattener takes the bending rays of light at the edge of the lens and straightens them out, leaving nice pinpoints of stars at the edge. These elements are mounted just ahead of the focuser in the optical tube.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/162918846949_3cd53d31-d24d-4c32-be4c-838398a0398c_1024x1024.jpg?v=1674496337\" alt=\"\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003eThe FRA500 has an image circle that is an amazing 55mm, much larger than the standard 44mm full-frame image plane. Its special back-focus design frees users from calculating confusing back-focus distance or rummaging around for a proper spacer. Once your target is in focus, that’s it, just start taking images.\u003c\/p\u003e\n\u003cp\u003eAskar’s FRA500 optical is a wonderful mix of pragmatism and aesthetics. It has smooth lines and a sound layout of components. From the front, the Askar FRA500 has an impressive dew shield decorated with a classic bright-red bezel ring. The total length of FRA500 is 452mm when the dew shield is stretched out and 410mm when contracted back. At the tail end of the astrograph is a 3.5\" massively-built focuser with dual-speed hand knobs (twin knobs for coarse adjustment and one 1:10 fine adjustment knob), which is of great use in real observation or astrophotography.\u003c\/p\u003e\n\u003cp\u003eThe f\/5.6 focal ratio is ideal for deep-sky imaging but ASKAR also makes an optional FRA72RD focal reducer which is not included but changes the scope to a an f\/3.9 wide field astrograph that still supports full-frame imaging.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/1629188424_44a909d1-802d-4e31-9e1a-b43a7eab9cb6_1024x1024.png?v=1674496306\" alt=\"\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003eAskar FRA500 comes with a pair of solid tube rings. There is a handle on the top of the rings and an Askar Losmandy-style dovetail plate on the bottom.\u003c\/p\u003e\n\u003cp\u003eThe Askar FRA500 is 410mm long and weighs about 4kg, so it’s quite convenient for users to carry around or mount on an EQ mount. It’s particularly suitable for astronomy enthusiasts who frequently engage in long-distance trips or out-door astrophotography.\u003c\/p\u003e\n\u003cp\u003eThis astrograph is an amazing performer for the price. The fast apochromat offers very wide fields with pinpoint stars throughout the field of view and approaches performance seen in telescopes costing three times as much. If using large format cameras, this telescope won’t disappoint!\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eMechanical Design\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/162918848237_6c4c0b96-0964-4104-afb6-925e268a45e8_1024x1024.jpg?v=1674496439\"\u003e\u003c\/div\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eThe FRA500 is recognized for a large aperture, fast speed, delicate focusing system, unique optical design, and subsequently high-quality imaging results\u003c\/li\u003e\n\u003cli\u003eThe FRA500 is more lightweight and compact than the FRA600, which makes it a great choice for out-door observation or astrophotography\u003c\/li\u003e\n\u003cli\u003ePurchase the \u003ca href=\"https:\/\/optcorp.com\/products\/sharpstar-askar-full-frame-reducer-for-fra400-2-5\" target=\"_blank\"\u003eAskar F3.9 Full Frame Reducer!\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eFRA500 OTA\u003c\/li\u003e\n\u003cli\u003ePair of tube rings\u003c\/li\u003e\n\u003cli\u003eA handle\u003c\/li\u003e\n\u003cli\u003eAn Askar Losmandy dovetail plate\u003c\/li\u003e\n\u003cli\u003eA conical extender\u003c\/li\u003e\n\u003cli\u003eManual\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sharpstar \/ Askar","offers":[{"title":"Default Title","offer_id":39684461396037,"sku":"SS-FRA500-56","price":1999.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/1629350823.jpg?v=1639769097"},{"product_id":"orion-eon-70mm-ed-quadruplet-astrograph-refractor-telescope","title":"Orion EON 70mm ED Quadruplet Astrograph Refractor Telescope","description":"\u003cp\u003eWe can’t think of a better way to capture beautiful wide field images of the night sky than with the EON 70mm ED Quadruplet Astrograph Refractor Telescope. With a focal length of 350mm at f\/5, thousands of stars will appear in your frame in just a matter of minutes. Together with high contrast, excellent color correction, and a flat field view, your photographs will look stunning.\u003c\/p\u003e\n\u003cp\u003eThe 70mm EON Quad features a four-element optical system, to produce a flat field of view without the need for extra field flattener lenses. Simply attach your camera and focus. The edges are flat and already corrected! Two lenses are made from Hoya FCD-100 ED (extra-low dispersion) glass for incredible color correction and sharpness. The 3\" rack-and-pinion focuser features a 10:1 reduction gear for precise operation.\u003c\/p\u003e\n\u003cp\u003eYour camera can thread directly onto the focuser instead of using a 2\" nosepiece. This fully locks the camera in position for a stable and flex-free operation. The 360° rotatable focuser will allow for precise composition of your photographs. Standard adapter rings come with the 70mm EON, with interfaces including female 54mm, male 48mm t-thread and male 42mm t-thread.\u003c\/p\u003e\n\u003cp\u003eThe tube is only 12.75\" long with the dew shield fully retracted. Dual rings hold the telescope solidly in place. The bottom bar attaches to any Vixen compatible mount, and the top rail also includes threaded holes for more accessories.\u003c\/p\u003e\n\u003cp\u003ePair this flat-field refractor with a DSLR or other larger format CMOS camera and begin taking “wall-worthy” photographs of the night skies.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBest for imaging: Deep sky\u003c\/li\u003e\n\u003cli\u003eUser level: Advanced\u003c\/li\u003e\n\u003cli\u003eOptical design: Refractor\u003c\/li\u003e\n\u003cli\u003eOptical diameter: 70mm\u003c\/li\u003e\n\u003cli\u003eFocal length: 350mm\u003c\/li\u003e\n\u003cli\u003eFocal ratio: f\/5.0\u003c\/li\u003e\n\u003cli\u003eCoatings: Fully multi-coated\u003c\/li\u003e\n\u003cli\u003eOptics type: 4-element optical system\u003c\/li\u003e\n\u003cli\u003eGlass material: Extra low dispersion FCD-100\u003c\/li\u003e\n\u003cli\u003eResolving power: 1.66arc*sec\u003c\/li\u003e\n\u003cli\u003eOptical quality: Diffraction limited\u003c\/li\u003e\n\u003cli\u003eFocuser: 3\" dual-speed Rack-and-pinion\u003c\/li\u003e\n\u003cli\u003eMount type: Optical Tube without Mount\u003c\/li\u003e\n\u003cli\u003eBackfocus distance: 69.2mm\u003c\/li\u003e\n\u003cli\u003eTube material: Aluminum\u003c\/li\u003e\n\u003cli\u003eLength of optical tube: 12.8 in.\u003c\/li\u003e\n\u003cli\u003eWeight, optical tube: 6.6 lbs.\u003c\/li\u003e\n\u003cli\u003eOther features: Flat field images up to full format sized sensors, 43mm image circle, Includes Hoya FCD-100 ED glass\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eAn exceptional, quality, wide field ED astrograph for taking breathtaking photographs of the night sky\u003c\/li\u003e\n\u003cli\u003e350mm f\/5 lens system with an image circle of 43mm that provides almost 6-deg of sky with a full format camera\u003c\/li\u003e\n\u003cli\u003eA four-element lens system that utilizes two Hoya FC-100 ED lenses for ultimate color correction, detail, and contrast\u003c\/li\u003e\n\u003cli\u003eFlat field imaging for cameras up to 35mm full format - no need for a separate field flattener\u003c\/li\u003e\n\u003cli\u003eWeighs just 8.5 lbs with rings and dovetail bars attached\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eOrion 70mm f\/5 ED Quadruplet Astrograph Refractor\u003c\/li\u003e\n\u003cli\u003eHinged tube rings\u003c\/li\u003e\n\u003cli\u003eVixen style Dovetail bar (bottom)\u003c\/li\u003e\n\u003cli\u003eVixen\/Arca-Swiss style Accessory Dovetail bar (top)\u003c\/li\u003e\n\u003cli\u003e54mm male - 48mm male T-thread step-down ring\u003c\/li\u003e\n\u003cli\u003e48mm female - 42mm male T-thread step-down ring\u003c\/li\u003e\n\u003cli\u003eLens caps\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Orion","offers":[{"title":"Default Title","offer_id":39743932923973,"sku":"OR-10383","price":1799.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/EON70.png?v=1642699778"},{"product_id":"sharp-star-askar-107mm-f-7-quadruplet-flat-field-astrograph","title":"Askar 107PHQ F\/7 Quadruplet Flat Field Astrograph","description":"\u003ciframe width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/GlCOFG-kPUg\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e \u003cbr\u003e\n\u003cp\u003eThe first long-focal-ratio Flatfield astrograph from Askar, the 107PHQ is born with a special mission: taking high-quality astronomy images. Whether you are just getting started in astrophotography, or an experienced amateur with years of observing under your belt, the Askar 107PHQ will meet your needs.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/164240654614_1024x1024.jpg?v=1674500377\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/165820293968_1024x1024.jpg?v=1674500395\"\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cb\u003eWhat is an Astrograph?\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eAn astrograph is a specialized telescope designed specifically for astrophotography and is not well suited for visual observing or making general astronomical observations. Although it is possible to use them visually, the extra cost associated with astrographs make them a better value for astro-imaging - their special characteristics aren’t used in a visual setting.\u003c\/p\u003e\n\u003cp\u003eTaking images of the night sky is a specialized use-case for telescopes. As we often say in this hobby, ‘There is no such thing as the perfect telescope.’ We say that because there are so many different objects to look at in space and each one has different requirements to see it.\u003c\/p\u003e\n\u003cp\u003eDim, large things like galaxies and nebulae require big apertures, a wide field with lower magnifications which means short focal lengths.\u003c\/p\u003e\n\u003cp\u003eBright small things like planets don’t need aperture because they are brighter, instead we want more detail, higher magnifications and longer focal lengths.\u003c\/p\u003e\n\u003cp\u003eWhat’s more, telescopes with cameras attached work differently than one designed for use by a human eyeball. This is why you see so many accessories like field-flatteners, telecompressors, filters, etc for an imaging telescope you don’t see for visual observers.\u003c\/p\u003e\n\u003cp\u003eCameras can also do things an human eye cannot, most notably collect photons over a long time to compensate for aperture size, light pollution, etc.\u003c\/p\u003e\n\u003cp\u003eThese differences mean we can’t just buy one telescope to do all things and astrographs are a special telescope designed to do one thing and do it well: take pictures of the night sky.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/164240227992_1024x1024.png?v=1674500484\" alt=\"\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cb\u003eThe Askar 107PHQ\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eMost of the popular refractive astrograph designs available recently consist of a triplet refractive objective, followed by another lens in the optical tube that flattens the field. This field-flattener is placed after the objective and before the focuser.\u003c\/p\u003e\n\u003cp\u003eThis arrangement means that issues like knowing a particular back-focus for a given optical setup are gone, there is one fixed place for your camera in all settings. Because everything to take a good image are inside the tube: color-corrected lenses and field flattener, there isn’t a change in focus for any given camera or adapter.\u003c\/p\u003e\n\u003cp\u003eThe 107mm aperture makes the Askar 107PHQ highly versatile without giving up portability. Planets are very bright without chromatic aberration and the stars in the edges of a field with a deep-sky nebula or galaxy are pinpoints - no curved, distorted stars!\u003c\/p\u003e\n\u003cp\u003eThe relatively longer focal length of 740mm makes this an f\/7 telescope that is surprisingly versatile. Planetary detail along with relatively wide fields makes this a telescope that captures great images both of planets and nebulae.\u003c\/p\u003e\n\u003cp\u003eInterestingly for an astrograph, users report that the Askar 107PHQ is also a nice choice for visual observations. It can accommodate 1.25\" and 2\" zenith mirrors as well as various eyepieces providing a perfect focus. It can even be used to observe planets with a high magnification eyepiece. The built-in field flattener isn’t something the human eye will take much notice of, but the views are wonderful!\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/2_b0533012-d734-416c-9e6f-f86dbfd4dc55_1024x1024.jpg?v=1674500613\" alt=\"\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cb\u003eOptical Design\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eAskar 107PHQ is an f\/7 astrograph and has four optical elements, including two pieces of ED glass, which can better reduce chromatic aberration. It can achieve excellent color correction even with the magnification mounting to 300× in visual observation.\u003c\/p\u003e\n\u003cp\u003eThe sleek 107PHQ is assembled with high-quality CNC-machined components and wrapped in a smooth coating. All focus knobs and mounting rings are a decorative bright green. The 3.4-inch rigid focuser is capable of handling a load of 8kg and has a long travel distance of 95mm, which is suitable for visual observation.\u003c\/p\u003e\n\u003cp\u003eThe built-in field-flattening lens supports 44mm full-frame imaging. The stars around the corner of the images seldom suffer from distortion or deformation. At the center of its field of view, the RMS radius is only 3um and stars are pinpoints all the way out to the edge of the field of view.\u003c\/p\u003e\n\u003cp\u003eThe standard package includes an Askar 107PHQ OTA, a set of four-piece M86-M48 adapters, a pair of tube rings, a 300mm Askar Vixen-style dovetail plate and a high-quality aluminum suitcase.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/164240303530_1024x1024.jpg?v=1674500632\" alt=\"\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cb\u003eMaximum accessory connection (with the focuser fully retreated):\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eImaging mode:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e79mm (from the base of M48×0.75 male thread)\u003c\/li\u003e\n\u003cli\u003e99mm (from the base of M54×0.75 male thread)\u003c\/li\u003e\n\u003cli\u003e119mm (from the base of M68×1male thread)\u003c\/li\u003e\n\u003cli\u003e149mm (from the base of M86×1 male thread)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eObserving mode:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e120mm (from the end of 2\" visual back)\u003c\/li\u003e\n\u003cli\u003eTotal length：603mm（when the dew shield is contracted)\u003c\/li\u003e\n\u003cli\u003e754mm（when the dew shield is stretched)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eRear-end thread type：\u003c\/b\u003eM86×1 to M68×1\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eM68×1 to M54×0.75\u003c\/li\u003e\n\u003cli\u003eM54×0.75 to M52×0.75\u003c\/li\u003e\n\u003cli\u003eM52×0.75 to M48×0.75（with M48×0.75 filter thread）\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eFour-piece photographic adapter：\u003c\/b\u003eM48×0.75\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eMechanical Diagram\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/164247146934_1024x1024.jpg?v=1674500693\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cb\u003eDiagram\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/164240695651_1024x1024.jpg?v=1674500733\"\u003e\u003c\/div\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003e107mm Aperture with Excellent Light-gathering Ability\u003c\/li\u003e\n\u003cli\u003ef\/7 Focal Ratio for High Magnification\u003c\/li\u003e\n\u003cli\u003eQuadruplet air-spaced APO (including two ED glass)\u003c\/li\u003e\n\u003cli\u003eContractable Dew Shield\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eAskar 107PHQ OTA\u003c\/li\u003e\n\u003cli\u003ePair of tube rings\u003c\/li\u003e\n\u003cli\u003eAskar 300mm Vixen-style dovetail plate\u003c\/li\u003e\n\u003cli\u003eSet of four-piece M86-M48 adapters\u003c\/li\u003e\n\u003cli\u003eHigh-quality aluminum case\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sharpstar \/ Askar","offers":[{"title":"Default Title","offer_id":39780880711749,"sku":"SS-107PHQ","price":2495.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/SS-107PHQ.1.jpg?v=1644000183"},{"product_id":"askar-3-1-80mm-f-7-5-quadruplet-flat-field-astrograph","title":"Askar 80PHQ Flatfield Super APO Quadruplet 80mm Astrograph","description":"\u003ch4\u003eAskar has introduced a brand-new refractive astrograph, the second long-focal-ratio astrograph from the PHQ- family.\u003c\/h4\u003e\n\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/rDEdXBQnXkI\" height=\"315\" width=\"560\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\n\u003ch3\u003e\u003cb\u003eWhat is an Astrograph?\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eAn astrograph is a specialized telescope designed specifically for astrophotography and is not well suited for visual observing or making general astronomical observations.\u003c\/p\u003e\n\u003cp\u003eTaking images of the night sky is a specialized use-case for telescopes. As we often say in this hobby, ‘There is no such thing as the perfect telescope.’ We say that because there are so many different objects to look at in space and each one has different requirements to see it.\u003c\/p\u003e\n\u003cp\u003eDim, large things like galaxies and nebulae require big apertures, a wide field with lower magnifications which means short focal lengths.\u003c\/p\u003e\n\u003cp\u003eBright small things like planets don’t need aperture because they are brighter, instead we want more detail, higher magnifications and longer focal lengths.\u003c\/p\u003e\n\u003cp\u003eWhat’s more, telescopes with cameras attached work differently than one designed for use by a human eyeball. This is why you see so many accessories like field-flatteners, telecompressors, filters, etc for an imaging telescope you don’t see for visual observers.\u003c\/p\u003e\n\u003cp\u003eCameras can also do things an human eye cannot, most notably collect photons over a long time to compensate for aperture size, light pollution, etc.\u003c\/p\u003e\n\u003cp\u003eThese differences mean we can’t just buy one telescope to do all things and astrographs are a special telescope designed to do one thing and do it well: take pictures of the night sky.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/1646877218_1024x1024.png?v=1671139341\"\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cb\u003eThe Askar Astrographs are Among the Best and the 80PHQ is the Newest\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eThe 80PHQ inherits the optical design of the PHQ- family, it has a so-called 3+1 quadruplet lens structure which contains two pieces of ED glass that can effectively reduce chromatic aberration and enhance clarity and sharpness.\u003c\/p\u003e\n\u003cp\u003eA quadruplet refers to the number of pieces of optical glass. In this case, there are four elements: three make up the color-corrected triplet objective lens followed by a curved corrector plate placed further down the tube, closer to the focuser.\u003c\/p\u003e\n\u003cp\u003eThis \u003cb\u003ecorrector plate\u003c\/b\u003e is important because it ‘flattens the field’ meaning all rays coming through the lens are not distorted or curved. This effect is especially noticeable in stars at the edge of a field of view viewed through a short focal length refractor: without a flattener, stars appear deformed and stretched towards the edges of an image. A field flattener takes the bending rays of light at the edge of the lens and straightens them out, leaving nice pinpoints of stars at the edge.\u003c\/p\u003e\n\u003cp\u003eA \u003cb\u003ecolor-corrected triplet\u003c\/b\u003e means that all curves in the pieces of glass (three of them in this case), are such that all colors of light come to a focus at the same distance. A non-color corrected telescope would show little rainbows in the stars as all colors focus at different points. You could focus on blue light, for example, but yellow, green and red would be out of focus. This is called chromatic aberration and is common is incorrected refractors.\u003c\/p\u003e\n\u003cp\u003eWhat all this means is that all astrographs from PHQ- family come with an integrated lens combination that flattens the field and corrects for color aberrations. Rather than simply placing three major lenses and a corrector together in a line. This system is set, you can’t remove the corrector plate for example and have the telescope work. It’s all one integrated optical tube and the optical system cannot perform without any of these lenses in place.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/164687625881_1024x1024.jpg?v=1671139375\"\u003e\u003c\/div\u003e\n\u003cp\u003eFor astrophotography, this design leads to a more rational lens arrangement with better vignette control and superior image quality. The focal ratio of 80PHQ is f\/7.5. It’s a “long” focal-ratio astrograph compared with other counterparts from Askar. It’s a little bit longer even compared with 107PHQ which is f\/7 in focal ratio.\u003c\/p\u003e\n\u003cp\u003eOne very big advantage to this design is that you do not need to correct for back focus, a daunting task to beginners and experienced astrophotographers alike. Because the corrector is integrated into the design of the telescope, one focus is all you need to know.\u003c\/p\u003e\n\u003cp\u003eThere is a 3\" rack-and-pinion focuser on the rear end of the telescope. It’s a smooth focusing unit with dual-speed adjustment. 80PHQ’s rotator is marked with precise graduation which makes your previous subjective adjustment more accurate. The astrograph also comes with four adapter rings for a variety of cameras, and even an eyepiece holder adapter.\u003c\/p\u003e\n\u003cp\u003eA pair of clamshell-style CNC-manufactured black tube rings tightly hold the OTA. So you can just turn two locking screws to loosen or tighten the tube rings simplifying the setup by avoiding the frequent use of small tools like Allen wrenches or socket head screws.\u003c\/p\u003e\n\u003cp\u003eThe bright green dust cap, handle, locking screws, focusing knob and decorative rings add more energy and vitality to the otherwise deep and profound astrograph. White and green is the classic combination for PHQ series.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/164687629115_1024x1024.jpg?v=1671139423\"\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cb\u003eThe 80PHQ or the 107PHQ?\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eWhy an 80mm telescope if there is a 107? How different can they be?\u003c\/p\u003e\n\u003cp\u003eIndeed, 170PHQ and 80PHQ are similar in many aspects partially because they are both the newly-developed refractive astrographs from the same family. However even if they all have excellent mechanical design and a sophisticated optical system, there are noticeable differences between these two.\u003c\/p\u003e\n\u003cp\u003eAt the first glance, Askar 80PHQ is much more compact. 107PHQ is 603mm in length and weighs 5.7kg whereas 80PHQ is 448mm in length and weighs 3.9kg. So for smaller equatorial mounts, the lighter weight will be welcome. This also means more portability for remote observing. Aperture is not as important in astrophotography as in visual use. Many times the portability advantage far outweighs any light collecting loss because of the smaller diameter, one can adjust exposure times to compensate.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/NGC2264invio_1_1_1024x1024.jpg?v=1671139457\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cb\u003eMaximum accessory connection (with the focuser fully retreated)：\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eImaging mode:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e115mm（from the base of M48×0.75 male thread)\u003c\/li\u003e\n\u003cli\u003e135mm（from the base of M54×0.75 male thread）\u003c\/li\u003e\n\u003cli\u003e155mm（from the base of M68×1male thread）\u003c\/li\u003e\n\u003cli\u003e168.5mm（from the base of M76×1 male thread）\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eObserving mode:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e148mm（from the end of 2\" eyepiece holder）\u003c\/li\u003e\n\u003cli\u003eTotal length：450mm（including 1.25\" eyepiece holder as dew shield contracted）\u003c\/li\u003e\n\u003cli\u003e540mm（including 1.25\" eyepiece holder as dew shield fully stretched）\u003c\/li\u003e\n\u003cli\u003e480mm（including the 4-piece adapter as dew shield contracted）\u003c\/li\u003e\n\u003cli\u003e570mm（including the 4-piece adapter as dew shield fully stretched）\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eRear-end thread type：\u003c\/b\u003eM76×1-M68×1\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eM68×1-M54×0.75\u003c\/li\u003e\n\u003cli\u003eM54×0.75-M54×0.75\u003c\/li\u003e\n\u003cli\u003eM54×0.75-M48×0.75（M48×0.75 filter thread inside）\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/2_1_2_1024x1024.jpg?v=1671139484\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cb\u003eWe recommend pairing this with the \u003ca href=\"https:\/\/optcorp.com\/products\/askar-0-76x-reducer-for-askar-80phq-telescope\" target=\"_blank\"\u003eAskar 0.76x Reducer\u003c\/a\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003eHigh quality APO quadruplet refractor telescope\u003c\/li\u003e\n\u003cli\u003ef\/7.5 focal ratio\u003c\/li\u003e\n\u003cli\u003e600mm focal length\u003c\/li\u003e\n\u003cli\u003e80mm aperture\u003c\/li\u003e\n\u003cli\u003e8.6 lbs weight\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003e80PHQ OTA\u003c\/li\u003e\n\u003cli\u003ePair of tube rings\u003c\/li\u003e\n\u003cli\u003eHandle\u003c\/li\u003e\n\u003cli\u003eAskar 300mm Vixen dovetail plate\u003c\/li\u003e\n\u003cli\u003e4-piece photographic adapters\u003c\/li\u003e\n\u003cli\u003eManual\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sharpstar \/ Askar","offers":[{"title":"Default Title","offer_id":40143062663237,"sku":"SS-80PHQ","price":1495.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/products\/Askar-80PHQ-Refractor-Telescope.jpg?v=1671138356"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/collections\/Apochromatic-Telescopes.png?v=1543018456","url":"https:\/\/optcorp.com\/collections\/apochromatic-telescopes.oembed?page=4","provider":"OPT Telescopes","version":"1.0","type":"link"}