Open Box Explore Scientific 80mm f/6 Essential Series Triplet Refractor-SOLD

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  • $499.00
  • Regular price $729.99

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  • This is an open box scope in excellent condition
  • Aperture: 80mm
  • Focal Ratio: f/6
  • Focal Length: 480mm
  • Adaptable, high power, excellent clarity triplet refractor


Open Box Explore Scientific 80mm f/6 Essential Series Triplet Refractor-SOLD

Rugged and portable, the Explore ED80 Triplet is a true three-element apochromatic telescope capable of producing research-level image quality. Dr. Mike Reynolds used this telescope to make the first-ever images of shadow bands on clouds during the total eclipse of the sun over Easter Island on July 11, 2010.

Fine optical quality, deluxe 2-speed focuser, and 99% dielectric 2" diagonal make this telescope an extreme value!

Explore Scientific 80mm f/6 Essential Series Triplet Refractor Features...
  • The Explore ED80 telescope comes with a white aluminum tube with black accents.
  • Explore Scientific Air-Spaced Apochromatic Triplets have true APO optic and are diffraction limited at .25PV or better.
  • Genuine ED glass from Hoya Japan is used on all ED APO Triplets at Explore, for superb quality and light throughput.
  • Enhanced 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.
  • While refractors seldom require additional collimation after initial factory adjustment, the lens cell design allows for consumer collimation. Sending your ED80 Triplet off to the factory is always an option, but is not required.
  • 80mm models come with heavy-duty 2" dual-speed focusers.
  • The included 2" diagonal has a precision-polished mirror with enhanced 99% dielectric coatings.
  • To 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 & others.


Aperture80 mm (3.15")
ConditionOpen Box
Dew Shield IncludedYes
Diagonal Included 2" Star Diagonal
Exterior ColorGloss White
Focal Ratiof/6
Focuser Size2"
Focuser StyleRack & Pinion
Focusing SpeedsSpeed
ManufacturerExplore Scientific
Optical DesignTriplet
OTA Weight7.5 lb.
Scope SeriesExplore Scientific Essential
Warranty Covered by OPT


  • Explore Scientific 80mm f/6 Essential Series Triplet Refractor
  • Vixen Style Dovetail
  • 2" Dual-Speed Focuser
  • 2" Dielectric Diagonal
  • Finderscope base

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Ask a Question
  • Is the Audiostar compatible with my ETX-105 purchased around 2001? My Meade Autostar 497 has stopped working.

    Yes, Audiostar is backwards compatible with all 497 compatible scopes.

  • Will this scope fit out-of-the-box onto iOptron CEM25 mount?

    Yes the Explore Scientific 80mm F/6 refractor will work on the Ioptron CEM25 mount. The mount takes vixen style bar and the scope comes with a vixen style bar.

  • Can you tell me if this scope will fit on a Celestron Advanced VX mount straight out of the box or will I need an adapter?

    Unfortunately, this will not directly connect because of the shape of the tripod foot. You will need to screw another V-series dovetail to the tripod foot to slide into the AVX saddle.

  • No case?

    Hi, this is Steve. This scope does not have a case. If you need any more information, please give me a call at 800-487-6287

  • Does Exp Sci make a field flattener for this scope? If so, what's it's cost and item number? Also, will I need anything else to use this scope for astrophotography with my Canon T3i DSLR, such as a focus extender, adapter rings, etc?? Thanks.

    The field flattener Explore Scientific recommends for this scope is the ES-FFEDAPO-00, which runs $199. You will need a standard Canon T ring as well (part CE-93419 - $14.95) to connect your camera to the flattener, which then slides into the 2" focuser o

  • Hi, Do you know if the dovetail on this is compatible with the Skywatcher NEQ6PRO mount? Or is there any way to remove the existing foot make it compatible? 

    The foot on the bottom of the Explore Scientific Essential Series 80mm Triplet Apo is compatible with Vixen (V-style) saddles. As the mount you reference has both V and D-series saddles, it will work without modification.