Focus Scientific

USED Orion Eon 120mm (4.7\") ED APO Refractor Telescope OTA

This scope is used, and is in good condition. The black anodizing on the lens shade is sun-faded a little.

The EON 120mm ED-doublet Apochromatic refractor by Orion produces razor-sharp, false colour-free views, highly suitable for astrophotography and observing.


  • FPL-53 ED glass eliminates chromatic abberation by focusing red and blue wavelengths to a common focal point
  • Retractable lens shade and metal lens cap
  • Dual-speed crayford focuser with engraved measuring index
  • Gorgeous mirror-like black paint job with silver accents
  • Includes "The Beginners Guide to Using Telescopes" written by our knowledgeable staff.


  • Aperture: 120mm (4.7")
  • Focal Length: 900mm (35.4")
  • Focal Ratio: f/7.5
  • Lens Construction: doublet APO, with one element of FPL-53 ED glass
  • 2" crayford focuser with compression ring
  • Machined tube rings with 44mm (1.75") dovetail bar
  • 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
  • Aluminum carry case included
  • Length 91cm (36")
  • Weight 6.75kg (15lbs)
  • One year warranty