Orion ShortTube 80 Refractor Telescope OTA

Orion ShortTube 80 Refractor Telescope Optical Tube Assembly

Item #  09948

Here\'s an ultra-affordable 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 the Orion EQ-1 mount (sold separately) and you\'ve got one nifty and pleasantly portable rich-field star probe.

You\'ll love this refractor telescope\'s 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 visual adventures. The Orion ShortTube 80 Refractor Telescope Optical Tube reels in bright deep-sky objects and also provides great views of solar system targets like Saturn, Jupiter, and the Moon.

Get the versatile, fully multi-coated Orion ShortTube 80 Refractor Telescope Optical Tube Assembly today! Sold as Optical Tube Assembly only - no accessories included.

Specifications:

. Best for viewing : Brighter deep Sky

. User level : Beginner

. Optical design : Refractor

. Optical diameter : 80mm

. Focal length : 400mm

. Focal ratio f/5.0

. Coatings : Fully multi-coated

. Optics type : Air-spaced doublet

. Glass material : Crown/Flint

. Eyepieces : None

. Resolving power : 1.45 arcsec

. Lowest useful magnification : 12x

. Highest useful magnification : 160x

. Highest theoretical magnification : 106x

. Limiting stella magnitude : 12.2

. Optical quality : Diffraction limited

. Finder scope : None

. Focuser : 1.25\" Rack-and-pinion

. Mount type : Optical Tube without Mount

. Astro-imaging capability : Lunar, planetary & long exposure

. Tube material : Aluminium

. Length of optical tube : 15.0 in.

. Weight, optical tube : 3.0 lbs.

. Other features : Fully multi-coated