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Orion Telescopes
Orion CT80 80mm Compact Refractor Telescope Optical Tube
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  • Portable 80mm, f/5 refractor telescope optical tube at a great price
  • Pop it on your favorite mount or use it as a guide scope for astrophotography
  • Newly upgraded aluminum rack-and-pinion focuser eliminates drawtube flexure when focusing
  • Wide field-of-view optics excel at guide star acquisition as well as expansive celestial and terrestrial observations
  • Compact and versatile telescope weighs just 2.25 lbs. and measures 14.75" long

Learn more
Item #  09202

We are pleased to offer this affordable optical tube version of the Orion CT80 80mm Compact Refractor Telescope without accessories. This versatile refractor excels at wide-field observations day or night, and can also be used as a guide scope for advanced astrophotography pursuits.
As a guide scope, the fast f/5.0 optical tube provides a wide field of view for easy acquisition of guide stars. We listened to feedback after the initial release and are pleased to report that the aluminum 1.25" rack-and-pinion focuser has now been upgraded with increased drawtube rigidity to eliminate image shift when focusing. This upgrade makes guide star acquisition and focusing easier and more reliable. Weighing in at a mere 2.25 lbs., the CT80 Refractor Optical Tube can be added to virtually any astrophotography set-up.

When attached to a tripod or equatorial mount and equipped with an optional mirror diagonal and eyepiece, the Orion CT80 becomes a pleasantly portable rich-field star probe that delivers bright, wide-field views. The CT80 telescope's fully coated 80mm objective lens and 400mm focal length make it ideal for scanning vast expanses of night sky. For observing terrestrial targets, just add a correct-image diagonal. Internal baffles help eliminate off-axis reflections and optimize contrast.  

A Vixen-style dovetail mounting bar on the bottom of the CT80 includes threaded 1/4"-20 holes for secure attachment to a variety of mounts and tripods. The 1.25" focuser has a focus lock knob and is compatible with any 1.25" mirror or prism diagonal and 1.25" sized telescope eyepieces. You can add an optional Orion finder scope or reflex sight to the CT80 via the built-in dovetail finder scope base.

Thanks to its compact design, the CT80 Refractor is easy to bring along on road trips, family campouts, and wherever adventure takes you.

Sold as Optical Tube only. All accessories sold separately.


Limited 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. For complete warranty details contact us at 800-447-1001.

Product Support
Visit our product support section for instruction manuals and more
  • Best for viewing
    Lunar & planetary
  • Best for imaging
    Lunar, planetary & terrestrial
  • User level
  • Optical design
  • Front-end outside tube diameter
    4.00 in.
  • Optical diameter
  • Focal length
  • Focal ratio
  • Coatings
    Fully coated
  • Glass material
  • Resolving power
  • Lowest useful magnification
  • Highest useful magnification
  • Highest theoretical magnification
  • Limiting stellar magnitude
  • Focuser
    1.25" Rack-and-pinion
  • Mount type
    Optical Tube without Mount
  • Astro-imaging capability
    Lunar, planetary & terrestrial
  • Tube material
  • Length of optical tube
    14.7 in.
  • Weight, optical tube
    2.2 lbs.
  • Additional included accessories
    Attached Vixen-style dovetail mounting bar
  • Other features
  • Warranty
    One year

Orion CT80 80mm f/5 Compact Refractor Telescope Optical Tube

Orders received by 1pm Eastern Standard Time for in-stock items ship the same business day. Order received after noon will ship the next business day. When an item is not in-stock we will ship it as soon as it becomes available. Typically in-stock items will ship first and backordered items will follow as soon as they are available. You have the option in check out to request that your order ship complete, if you'd prefer.

A per-item shipping charge (in addition to the standard shipping and handling charge) applies to this product due to its size and weight. This charge varies based on the shipping method.

Standard Delivery: $0.00
3 Day Delivery: $18.00
2 Day Delivery: $18.00
Next Day Delivery: $26.00

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