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Orion - ShortTube 80 Telescope Optical Tube


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Manufactured by: Orion

Orion - ShortTube 80 Telescope Optical Tube


Orion ShortTube 80 Telescope Optical Tube

  • Use as a guide scope with a CCD autoguider.
  • Multi-coated 80mm f/5.0 optics deliver bright, wide-field images.
  • Sold as optical tube assembly only, no accessories.
  • One-year limited warranty.

Here's a newly upgraded version of our ever-popular Orion ShortTube 80 Telescope Optical Tube that's accessorized for astronomical adventure. Pop it on your favorite Orion telescope mount and you've got one nifty, portable star probe.

You'll love its bright, wide-field views. Its multi-coated 80mm objective lens and 400mm focal length (f/5.0) are perfect for scanning the night sky. The Orion ShortTube 80 Telescope Optical Tube reels in bright deep-sky objects and gets you in tight on solar system targets. One-year limited warranty.


Product Specifications:

  • Use Astronomy and terrestrial

  • 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 included None

  • Resolving power 1.45arc*sec

  • Lowest useful magnification 12x

  • Highest useful magnification 160x

  • Limiting stellar magnitude 12.2

  • Optical quality Diffraction limited

  • Focuser 1.25in. Rack-and-pinion

  • Mount style Optical Tube without Mount

  • Astro-imaging capability Lunar, planetary and long exposure

  • Tube material Aluminum

  • Length of optical tube 15.0 in.

  • Weight, optical tube 2.4 lbs.

  • Other features now Fully Multi-Coated

  • Warranty One year

Additional Information

Name Orion - ShortTube 80 Telescope Optical Tube
Manufacturer Orion
Model ORI-09948
Manufacturer Part No ORI-09948
Telescope Aperture 3.1" - 4"
Diameter 80mm
Finderscope 5x24
Focal Length 400mm
Focal Ratio f/5.0
Focuser 1.25" Rack-and-pinion
Highest Useful Magnification 160x
Limiting Stellar Magnitude 12.2
Lowest Useful Magnification 12x
Optical Coatings Fully multi-coated
Optical Design Refractor (Air-spaced doublet) Crown/Flint
Optical Tube Aluminum
Optical Tube Length 15.0 in
Optical Tube Weight 3.0 lbs
Warranty One Year