Orion Eon 85mm (3.35") ED-X2 APO Refractor Telescope OTA

Orion Eon 85mm (3.35") ED-X2 APO Refractor Telescope OTA

Due to high demand and global product shortages due to the pandemic, please call for availability.

Unlike most ED triplets which are made with just one ED glass element, this beautifully crafted apochromatic refractor stands above ordinary triplets since it features one element of FPL-53 ED glass and one element of FPL-51 ED glass. The Orion EON 85mm ED-X2 refractor provides superior correction of chromatic and spherical aberrations, delivering impeccable visual views and razor-sharp astrophotos without any color fringing or loss of clarity.

This beautiful telescope sports a hybrid-drive 2" rack & pinion focuser which can support imaging gear trains weighing up to 17.6 lbs., and features dual-speed (11:1) controls to easily fine-tune focus. You can rotate the focuser 360° to optimize imaging or observing convenience. The focuser permits 60mm of backfocus travel, and has a built-in focus lock knob. A step-down 1.25" adapter allows use of both 2" and 1.25" size accessories.

The 85mm EON ED-X2 refractor measures 560mm in focal length with a fast f/6.6 focal ratio which is excellent for wide-field visual and photographic use. Multiple internal baffles prevent off-axis reflections for excellent contrast, while a retractable lens shade helps eliminate glare and dew buildup. Weighing just 9.25 lbs., the lightweight EON 85mm ED-X2 doesn't require a gigantic mount for stable support, and makes a great addition to any astrophotography setup.

The Orion EON 85mm ED-X2 f/6.6 Triplet Apo Refractor comes with a thread-on objective lens cover, two heavy-duty machined tube rings, a sturdy machined dovetail bar for easy mount attachment, and a dovetail finder scope base (installation required). An included hard carry case with a custom die-cut foam insert ensures safe transport and convenient storage of the telescope and all included accessories.

This exceptional refractor will satisfy even the most demanding astrophotographers and observers. With gloss-black machined construction, and attractive satin-red features and accessories, the Orion EON 85mm ED-X2 telescope is a truly gorgeous astronomy instrument.


  • Two ED elements; FPL-53 and FPL-51, eliminates chromatic aberration by tightly focusing visible wavelengths to a common focus
  • Retractable lens shade and thread-on metal lens cap
  • Rotatable 2" hybrid-drive focuser with precise, 11:1 dual-speed control supports up to 17.6 lb without slippage
  • Includes hard carry case, machined tube rings and dovetail bar, 1.25" adapter, and more
  • Includes "The Beginners Guide to Using Telescopes" written by our knowledgeable staff.


  • Aperture: 85mm (3.35")
  • Focal Length: 560mm (22")
  • Focal Ratio: f/6.6
  • Lens Construction: triplet APO, with one element each of FPL-53 ED and FPL-51 ED glass
  • Fully multicoated
  • Aluminum tube, with multiple internal baffles
  • 2" hybrid drive focuser
  • Camera Capable:
    • USB imagers
    • All-in-one cameras via universal digital camera adapter
    • DSLR/SLR (Requires T2 ring, 2" prime focus adapter)
    • Above cameras and adapters sold separately
  • Length 45cm (17.7")
  • Weight 4.17kg (9.2lb)
  • Machined tube rings
  • V-series dovetail bar, 178mm (7") long, 44mm (1.75") wide
  • Aluminum carry case included
  • One year warranty