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Radian Raptor 61 f/4.5 Imaging APO Telescope


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  • Available for Pre-order. Ships 12/15.

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  • The ultimate portable astrophotography telescope
  • Comes with multiple upgraded components as standard for a complete, turnkey package
  • 61mm aperture, 275mm focal length, f/4.5 system
  • Premier apochromatic triplet optics for pristine image quality
  • Custom Radian Hex Rings with integrated cable management channels
  • Huge full frame image circle with the included Corrector for sharp stars across the image on DSLRs, mirrorless, and dedicated astronomy cameras
  • Comes with a 4" V-style dovetail & a Radian 6.5" universal D-style plate to ensure compatibility with any mount out of the box
  • Additional included accessories consist of a 10:1 factory-tuned rack & pinion focuser, a 2" Filter Vault, a 360º rotator, and more
  • Check out our Radian Raptor 61 Rundown to learn more!

Product Details

  • Radian Raptor 61 Imaging Telescope

    Introducing the Radian Raptor 61: a premium, travel-friendly APO triplet imaging refractor with all the bells & whistles included for the modern astrophotographer.

    Available for pre-order now. Ships December 12th.

    Here at Radian Telescopes, we believe in building gear that works seamlessly with any system, so you can focus on doing what you love — capturing awe-inspiring images of the cosmos — instead of wasting hours fussing with adapters, mounting, and other headaches. That's why we built the Raptor 61: a portable, widefield 61mm f/4.5 apochromatic triplet refractor packed with features that any astrophotographer would want for turnkey imaging. Being astrophotographers ourselves, we know how frustrating it feels to have perfectly clear skies overhead but you waste the night trying to get your equipment to work the way it should. With the Raptor 61, wasted nights can be a thing of the past. With its wide field of view, the Raptor 61 is the ideal choice for producing stunning images of deep sky objects that cover wide swaths of the night sky.




    Radian Raptor 61 Aperture
    • Tack-Sharp, Fast Optics

      We know how agonizing it is to have to spend multiple nights capturing images when using a slow system. With its fast f/4.5 focal ratio, the Raptor 61 allows for shorter exposures, making it possible to capture quality data on multiple targets in a single night.
    • High-Quality Glass

      The Raptor 61 features an apochromatic triplet optical design with premium glass and multi-coatings to tackle chromatic aberration with ease, leading to an ultra-clean overall image without the nuisance of reflections.
    • Wide Field of View

      The 275mm focal length is simultaneously excellent for widefield imaging and highly forgiving, making it the perfect choice for both beginners and experts. Targets like the entire Veil Nebula and the Orion & Horsehead Nebula together can fit easily into frame on up to full frame sensors.
    • Dedicated Corrector

      With the Raptor 61, there's no need to buy an additional reducer/flattener. The dedicated, factory-matched corrector that comes as standard is intended to be used as an always-on solution for imaging. The corrector's three-element design provides correction for sensors as large as full frame, so no matter which camera you use, pinpoint stars can be seen across the image.




    • Factory-Tuned Focuser

      You shouldn't need the world's steadiest hands to nail the focus on your telescope. To bypass this, we chose an ultra-sturdy 2.5" dual-speed rack & pinion focuser for the Raptor 61 that's factory tuned to allow extreme levels of precision when focusing. The 10:1 gear ratio of the coarse and fine focus knobs makes nailing tack-sharp focus a breeze for anyone.
    • Upgradeable Automated Focusing

      For those who want to do away with the task of manually focusing altogether, we are pleased to offer the optional USA-made Radian Electronic Focuser as an immediate automation upgrade. We know some prefer not having to second-guess focus accuracy by hand, or would rather control their system from inside on colder nights. The Radian Electronic Focuser's high-resolution stepper motor allows you to adjust focus directly (without an additional focus controller) via software from your computer to ensure you get perfect focus automatically every time.
    • Integrated Filter Vault

      Adding filters to imaging rigs can make figuring out the correct backfocus challenging. The Filter Vault is integrated directly into the Raptor's included adapters, so you can easily swap out your favorite 2" filters and never worry about spacing or backfocus. Unlike most other telescopes which require an additional filter drawer for an added cost, the Raptor 61 has you covered out of the box.




    • Innovative Ring Design

      With a design that hasn't changed in over a century, traditional tube rings can cause you to lose precious hours of imaging time when a cable snags on one of the tightening screws. On top of that, many have wasted time trying to figure out how to attach additional accessories like a guide scope, power box, or other add-ons. To end these issues once and for all, we designed a brand new, innovative set of rings just for the Raptor 61: the Radian Modular Hex Rings.
    • No More Snags

      The Modular Hex Rings feature a six-sided construction with mounting holes on all sides to attach any accessory you need, saving you headaches and trips to the hardware store. Cables can be routed through integrated cable channels in the rings for improved cable management. Unlike tightening screws that protrude off of the scope and get caught easily, the Modular Hex Rings have a quick-clamp design that eliminates the possibility of cable snags. 




    • Two Dovetails Included

      We know what it's like to buy a telescope and be ultra excited to receive it, only to find that the dovetail that came with the scope doesn't fit onto your existing mount. For that reason, we decided that the Raptor 61 should come standard with both a 6.5" universal Losmandy D-style dovetail and a 4" Vixen V-style dovetail. Having both at your disposal means you can start using your new Raptor 61 right away on any variety of mounts you already own.
    • Lightweight

      Forget having to haul your heavy equatorial mount far from home. At a total weight of just 4 lbs (1.8 kg), the Raptor 61 can be carried on even the lightest travel mounts, including star trackers like the Sky-Watcher Star Adventurer Pro or the iOptron Skyguider Pro, with weight to spare for a camera as well.





    • Defend from Dew

      Included dew shield helps fend off dew from forming on the objective on humid nights, and front and rear dust covers protect the telescope's optics when not in use.
    • Rotating Made Easy

      Rotating the camera to get the ideal framing has never been simple with many telescopes. On the Raptor 61, we chose a built-in 360º rotator that makes it easy to frame your images to your ideal composition without having to rotate the entire telescope.
    • Simple Camera Attachment

      Some telescope manufacturers use proprietary thread sizes on the back, making it difficult to find the right adapters to attach your camera. We chose a simple, industry-standard M48 thread size with full frame sensors in mind for this very reason. Simply attach an M48 wide T-ring with any DSLR or Mirrorless camera and you're ready to image. The threads can also easily be sized down to smaller formats, such as M42, using the adapters that most manufacturers supply with dedicated astronomy cameras.




    • Case Included
      Say goodbye to pricey custom cases and plucking foam when trying to transport your telescope. The Raptor 61 comes standard with a Radian travel backpack complete with padded inserts sized for carrying the telescope, a CMOS camera, and a number of other accessories safely when you head out to your favorite dark sky site.

    The Heart & Soul Nebulae, captured by Trevor Jones of AstroBackyard with a Canon EOS Ra full frame camera on the Raptor 61:


    The California Nebula, captured by Trevor Jones of AstroBackyard with a Canon EOS Ra full frame camera on the Raptor 61:


    Watch AstroBackyard's Video on the Raptor 61:


  • specifications

    Case StyleRadian Padded Insert Backpack
    CorrectorIntegrated Corrector with three element design
    Dew ShieldIncluded
    Dust CoversBoth front and rear covers included
    Filter Attachment2" / M48 Filter Vault
    Focal Length275mm
    Focal Ratiof/4.5
    Focus Knobs10:1 Dual Speed with Locking Knob
    Focuser DesignNon Helical Rack & Pinion
    Image Circle44mm
    Included Dovetails6.5" universal Losmandy D Style and 4" Vixen V Style
    Optical DesignApochromatic Triplet Refractor
    Optical DesignPetzval Refractor
    OTA Length (Dew Shield Retracted)235mm
    OTA Outer Diameter w/o Hex Rings80mm
    OTA Outer Diameter90mm with Dew Shield
    Rear Camera ConnectionM48x0.75 (wide T Ring compatible)
    Recommended Back Focus55mm (can be reached with included adapters)
    Rotator360º with Locking Knob
    Tube RingsRadian Modular Hex Rings
    Weight4 lbs
  • included items

    • Radian Raptor 61 Telescope
    • Radian padded-insert travel backpack
    • Radian 6.5" universal D-style plate
    • 4" V-style dovetail
    • Radian Modular Hex Rings
    • Filter Vault


Product Reviews

Customer Reviews
4.6 Based on 14 Reviews
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Mike B.
United States United States
Radian Raptor 61 f/4.5 Imaging APO

I wanted to add a couple more comments to my first review. I used the Radian D plate on the bottom of the Raptor in order to attach it to the Paramount MyT mount. I then used the ***** dovetail on the top of the Raptor to attach the Software Bisque Sky Fusion control box. I did have one issue with the bolts that were provided for attaching the ***** dovetail. They were too long and I had to put a washer on each bolt to get a solid attachment.

OPT Telescopes Radian Raptor 61 f/4.5 Imaging APO Telescope Review
Mike B.
United States United States
Radian Raptor 61 f/4.5 Imaging APO

I just received the new Raptor 61mm refractor about two weeks ago. Of course as usual I had to wait for clear skies in order to try it out. I finally was able to image with the Raptor over the last couple of nights. I thought it was only appropriate to image the California Nebula since this was one of the first objects imaged by Trevor Jones. I used a ZWO ASI2600 color pro camera with the OPT Ultra Quad filter attached to the Raptor. I took 115 - three minute subimages and used DSS to stack them and Pixinsight to process the stacked image. I am very pleased with the results and would highly recommend this wide field, fast refractor.

OPT Telescopes Radian Raptor 61 f/4.5 Imaging APO Telescope Review
Kyle M.
United States United States
Not a turnkey solution

I can't comment on the image quality of the scope as I've not been able to mount a guide scope to it so I can use it for imaging. I purchased the scope based on the description of it being a "turnkey package." It seemed to be a great solution for a scope that I could travel with and use with my iOptron Skyguider Pro. One issue is that I'm not able to mount the 4 in. dovetail to the Hex Rings. When attempting to, the dovetail plate remains loose. Even if I could mount it I don't think it would be possible to balance the scope/imaging train with the short mounting bar. The included 6.5" D-style plate is nice, but I can't imagine using it and adding the extra weight on such a small scope. A v-type saddle is not included for attaching a guide scope. I understand that there are many different types of scopes out there, but it seems to me that most of the guide scopes you would used on the Raptor are fairly small and seem to all come with the same ***** type sliding base. Being relatively new to the hobby of astrophotography, it may just be my naivete speaking here. But having purchased 2 scopes from another manufacturer and having them be true turnkey solutions influenced my expectation for the Raptor. While the filter vault sounds like a nice feature, in practice, it's infuriating! It's impossible to get a 2" filter into the vault and thread it in. Again, maybe my inexperience is fighting me here... but without a proper instruction manual (also not included with the scope) I could only try and figure it out on my own. Maybe a video of someone demonstrating how to place the filter would be helpful. The packaging, presentation, and visual appeal of the scope is very nice. Much "sexier" than other scopes that are pretty much designed as "scientific instruments" first, with visual appeal as a lesser priority. After receiving the Raptor, I decided to purchase the SharpStar 61 EDPHII to compare. The SharpStar came as a true turnkey option with a mounting saddle for my guidescope. After comparing the scopes side by side, the only difference that could possibly exist (aside from the cosmetic treatment on the Raptor) is the type of glass used (which is not readily discernable just by looking at the glass side by side.) They are virtually identical in every other aspect, including the black electrical tape used to seal the top element under the dew shield. All in all, this does not feel like a $999 scope.

United States United States
Easy Focus, Now I only need to wait and wait for the Radian Electronic Focuser Upgrade to ship

Items I do not care for are the Clamps in White Mark and Scratch the Items in Yellow so be careful. See Image Another item is that the Rings use 2 different sizes of screws and you only get 4 of each and they are to long for most items to use so I take it that they are only for the use with their 4" V-style dovetail and 6.5" universal D-style plate that I find is was waste and should be removed and added as an Accessory. The 4" V-style dovetail is also to small IMO but I did find a use for it. I watched the New Video "Radian Raptor 61 Rundown to learn more!" and was trying to find the correct Visual Back (and How To) to buy but there was no info on the page on YouTube. It would be great if the website for this product had Real "Recommended Accessories" for use with this Nice Looking Telescope as well as the rest of the Products listed. I wonder if this would work but not enough information to be sure.

OPT Telescopes Radian Raptor 61 f/4.5 Imaging APO Telescope ReviewOPT Telescopes Radian Raptor 61 f/4.5 Imaging APO Telescope Review
William C.
United States United States
Hardware Replacement

I agree with Ashton the baseplates they send with the Raptor are WRONG! Yet there is a solution! Here it is, go to your nearby hardware store and get six items, two 3/4' hex bolts, two nylon washers of 1/8" thickness, and two nylon washers of 1/16" thickness, then order the Williams Optics 210mm dovetail. Now you can mount the dovetail that works, allowing you to balance the scope over the balance point which is about the focusing mechanism. The washers will give the dovetail clearance needed. As Cedar City was clouded over last night I could not do astro pics, yet the city lights illuminated the upper area of the Hurricane Cliffs about 1 and 1/4 miles away and I took a test shot of the Junipers with my modified RP. I like it. will try again tonight.

Ashton R.
United States United States
Wrong hardware

Every video i have seen the Radian on, it was mounted on a skyguider pro or a sky watcher pro, but it would have been nice if it came baseplate that was compatible with mounting it but instead im ordering $300 for the mount and the right dovetail that SHOULD have came with the telescope instead of all the incompatible parts thats un-needed. because we all know 9 out of 10 times you see this telescope it will most definitely be mounted to either of those 2 mounts.