Why Purchase from All-Star Telescope?
Free Expert Support
Whether you are a first timer needing help with setting up or an enthusiast that can't quite make that one thing work, our expert staff are ready to support your needs. With decades of knowledge and first hand experience we've been there and we can help you through it!
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30 Day Return Policy
Buy with confidence knowing that we accept returns up to 30 days after purchase. We want you to have something you will actually use and we are confident that we keep good quality products in our store with No Junk.
Price Match Promise
Shipping around for the best price is tough, we make it easier by offering the best pricing in the market. But if you find a better price on an in-store item somewhere else we will match it!
Product Description
The Orion ShortTube 80 Refractor Telescope Optical Tube Assembly is ideal for use as a dedicated guide scope for guided astrophotography pursuits. The fast f/5 achromatic optics provide a wide field of view that makes guide star acquisition a breeze. Its a-metal tube features a rack-and-pinion focuser with drawtube tension adjustment and a molded-in dovetail finder scope base that accepts optional Orion finder scopes. Weighing we under 3 lbs., the ShortTube 80 OTA can easily be added to virtually any astrophotography rig without exceeding your equatorial mount's payload capacity.
The ShortTube 80 OTA also excels as a wide-field visual telescope for exploring large swaths of the night sky or daytime vistas. Equip it with tube rings (sold separately) and pop the telescope onto an equatorial or altazimuth mount and you' be set for astronomical or daytime terrestrial viewing.
You' love this refractor telescope's bright, expansive views. Its multi-coated 80mm achromatic objective lens and short 400mm focal length are perfect for scanning vast vistas. Add your favorite telescope eyepieces, correct-image or mirror diagonal, and finder scope or reflex sight (a sold separately) and you' have an instrument customized for adventure.
The ShortTube 80 Refractor Telescope Optical Tube Assembly measures 15" in length. Its fixed aluminum dew shield extends a full 3-1/4" out from the objective lens to prevent dew formation and block off-axis glare. Another nice feature: the eyepiece holding collar on the focuser drawtube has two thumbscrews to ensure secure lockdown of your guide camera or diagonal. The end of the collar is even threaded with male T2 threads to allow threaded attachment of a DSLR directly to the focuser (with proper T-ring) for photography.
What can I see with a Orion 80 ShortTube OTA (09948)?
Here are some simulated views of common objects. Results with your telescope will vary with viewing conditions, obrits, equipment and more.
Jupiter with
25mm Eyepiece - 16x Magnification
(Sold Separately)
Jupiter with
10mm Eyepiece - 40x Magnification
Sold Separately
Jupiter with
5mm Eyepiece - 80x Magnification
Sold Separately
Moon with 25mm Eyepiece
16x Magnification
(Sold Separately)
Moon with 10mm Eyepiece
40x Magnification
Sold Separately
Moon with 5mm Eyepiece
80x Magnification
Sold Separately
Andromeda with 36mm Eyepiece
11x Magnification
Sold Separately
Andromeda with 25mm Eyepiece
16x Magnification
(Sold Separately)
Andromeda with 10mm Eyepiece
40x Magnification
Sold Separately
What's in the Box
Specifications
| Optical Diameter | 80mm |
| Focal Length | 400mm |
| Focal Ratio | f/5.0 |
| Coatings | Multi-Coated |
| Optics Type | Air Spaced Doublet |
| Focuser | 1.25" Rack-and-pinion |
| Mount Type | Without Mount |
| Length of Optical Tube | 15.0" |
| Weight of Optical Tube | 2.7 lbs |
