Orion

Orion 120mm f/5.0 Refractor Telescope Optical Tube with Software.

SKU: ON120F5OT MFR: 09836
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$319.99
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About the Orion 120 Refractor

The Orion 120mm f/5.0 Compact, Large-Aperture Refractor is perfect for deep-sky pursuits. Its 120mm (4.7"), multi-coated achromatic lens assembly and modest 600mm focal length combine to provide breathtaking wide-field views. With an optional 25mm Plossl eyepiece, this telescope serves up a sprawling 2.1-deg swath of sky! The fast f/5.0 optical system also makes it an excellent telescope for astrophotography.

The 26"-long optical tube is well baffled to ensure good contrast. The cast-metal 2" rack-and-pinion focuser accommodates either a 1.25" or 2" diagonal, so you can use 1.25" or 2" eyepieces. Tube color is gunmetal gray metallic. A mounting base molded into the focuser casting to accept an optional Orion finder scope or EZ Finder II.

Orion 120 Refractor Includes

  • Orion Optical Tube Assembly
  • 2"
  • 1.25" Eyepiece Adapter
  • Dust Cap
  • Starry Night Special Edition Software
  • Orion 1 Year Limited Warranty

Orion 120 Refractor Features

  • Perfect for deep-sky pursuits and excellent for astrophotography
  • 120mm aperture and 600mm focal length for breathtaking wide-field views
  • Does not include mount or tripod - can be purchased separately

Orion 120 Refractor Specifications

Use Astronomy & terrestrial
User level Intermediate
Optical design Refractor
Optical diameter 120mm
Focal length 600mm
Focal ratio f/5.0
Coatings Multi-coated
Optics type Air-spaced doublet
Glass material Crown/Flint
Eyepieces included No
Resolving power 0.97arc sec
Lowest useful magnification 17x
Highest useful magnification 240x
Limiting stellar magnitude 13.1
Optical quality Diffraction Limited
Focuser 2" Rack-and-pinion
Mount style Optical Tube without Mount
Astro-imaging capability Lunar, planetary & long exposure
Tube material Aluminum
Additional included accessories 1.25" adapter
Other features 2" Focuser
Length of optical tube 25.0 in
Weight, optical tube 8.6 lbs
Warranty Orion 1 year limited warranty
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