Here’s an optical tube assembly (OTA) version our ever-popular Orion ShortTube 80 refractor telescope. The ShortTube 80 Refractor Telescope Optical Tube Assembly is ideal for use as a dedicated guide scope for guided astrophotography pursuits. The fast f/5.0 optical tube provides an expansive wide field-of-view which makes guide star acquisition a breeze. A featherweight contender weighing in at a mere 2.95 lbs., the ST80 OTA can easily be added to virtually any astrophotography set-up without exceeding your imaging-capable equatorial (EQ) mount’s payload capacity. The ShortTube 80 refractor OTA can also perform as a great compact wide-field visual telescope for perusing large swaths of the night sky. Equip with tube rings (sold separately) and pop the telescope onto your favorite Orion telescope mount and you’ve got one nifty, portable rich-field star probe. You’ll love its bright, wide-field views. Its fully multi-coated 80mm objective lens and 400mm focal length (f/5.0) are perfect for scanning vast expanses of night sky. Add your favorite telescope eyepieces, correct-image or mirror diagonal, and finder scope or reflex sight (all sold separately) and you’re ready for daytime or nighttime visual adventures. The Orion ShortTube 80 Refractor Telescope Optical Tube reels in bright deep-sky objects and gets you in tight on solar system targets like Saturn, Jupiter, and the Moon. During daylight hours, the ST80 performs admirably as a terrestrial spotting scope, yielding contrasty views with crystal clarity. Achieve a correctly oriented daytime view by adding a 45 Degree correct-image diagonal (sold separately). Get the versatile fully multi-coated Orion ShortTube 80 Refractor Telescope Optical Tube Assembly today! Sold as Telescope Optical Tube Assembly, no accessories included.
An ideal refractor telescope optical tube assembly for use as a guide scope with a CCD autoguider, or for wide-field observations
Fast, wide field-of-view optics excel at guide star acquisition and viewing expansive celestial objects
Fully multi-coated 80mm aperture f/5.0 optics deliver bright, wide-field images with sharp resolution
Weighs just 2.95 lbs. and measures 15" long – can easily be added to an astrophotography system without overloading your telescope mount
Sold as optical tube assembly only without accessories – accessories sold separately