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Orion

Orion 80mm ED Apochromatic Refractor Telescope Optical Tube

SKU: ONED80OT MFR: 09895
Due to Manufacturer Restrictions, This Item can NOT be Shipped to California.
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$499.99
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About the Orion 80 Refractor

The Orion 80mm ED Apo Refractor Telescope Optical Tube is wonderfully suited for visual applications on both solar system and deep-sky objects as well as for prime-focus astrophotography and CCD imaging with it's focal length of 600mm (f/7.5). It sports a multi-coated 80mm objective lens doublet, one element of which is crafted from Extra-Low Dispersion, or "ED" optical glass.

This high-grade glass greatly reduces the chromatic aberration inherent in standard achromats. Images appear more sharply focused and color fringing around bright objects is lessened dramatically. The objective lens is held in a machined, black anodized aluminum cell and shaded by an aluminum dew cap. Internal tube baffles ensure high contrast and prevent ghosting.

The ED80 features a superb, backlash-free 2" Crayford-style focuser, which accepts both 2" and 1.25" diagonals. The focus wheels are classy, brushed-aluminum hubs with ridged rubber grip rings. Set the focuser tension or lock it for imaging with the focus lock knob. The molded-in dovetail base accepts the optional Orion finder scope of your choice. Tube has a built-in 1/4"-20 plate. At a length of just 24", the ED80 is extremely portable.

Orion 80 Refractor Includes

  • Orion 80mm Optical Tube Assembly
  • 2" to 1.25" Eyepiece Adapter
  • Dust Cap
  • Starry Night Special Edition Software
  • Orion 1 Year Limited Warranty

Orion 80 Refractor Features

  • An apochromatic refractor offered at an unprecedented low price
  • 80mm objective includes one element of FPL-53 "ED" glass, which virtually eliminates false color
  • Features a 2" aluminum Crayford-type focuser that accepts 2" or 1.25" accessories
  • Does not include mount or tripod

Orion 80 Refractor Specifications

Use Astronomy & terrestrial
User level Intermediate
Optical design Refractor
Optical diameter 80mm
Focal length 600mm
Focal ratio f/7.5
Coatings Fully Multi-coated
Optics type Air-spaced doublet
Glass material Extra low dispersion FPL-53
Eyepieces included No
Resolving power 1.45arc sec
Lowest useful magnification 12x
Highest useful magnification 160x
Limiting stellar magnitude 12.2
Optical quality Diffraction limited
Finder scope No
Focuser 2" Crayford
Mount style Optical Tube without Mount
Astro-imaging capability Lunar, planetary & long exposure
Tube material Aluminum
Other features One Element ED glass in apochromatic primary lens, Crayford Focuser, Machined aluminum lens cell
Length of optical tube 23.5 in
Weight, optical tube 5.7 lbs
Warranty Orion 1 year limited warranty
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