Orion ED80 80mm f/7.5 Apochromatic Refractor Telescope

About this product

Interested in owning a premium apochromatic refractor without having to take out a second mortgage? Then check out our amazingly affordable Orion ED80 80mm extra-low dispersion Apochromatic Refractor Telescope optical tube. This is one sweet telescope for astrophotography or visual use.

It's a sweet telescope all right. With a focal length of 600mm (f/7.5), the "ED80" is wonderfully suited for visual applications on both solar system and deep-sky objects as well as for prime-focus astrophotography and charge coupled device or, "CCD" imaging.

The ED80 refractor telescope sports a multi-coated 80mm aperture 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 achromatic refractor telescopes. Images and views appear more sharply focused and color fringing around bright objects is lessened dramatically. The refractor objective lens is held in a machined, black anodized aluminum cell and shaded by an aluminum dew cap. Precisely positioned internal tube baffles ensure high contrast and prevent ghosting.

The Orion ED80 refractor features a superb, backlash-free 2" Crayford-style focuser, which accepts both 2" and 1.25" diagonals. Notice the focus wheels: classy, brushed-aluminum hubs with ridged rubber grip rings. Nice touch. 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. The ED80 optical tube has a built-in 1/4"-20 plate for easy mounting, and also accepts our 100mm inside diameter tube rings (sold separately).

At a length of just 24", the Orion ED80 refractor is an extremely portable telescope. We're proud to offer the ED80 at an affordable price so the rest of us can enjoy the pleasures of a premium refractor without the pain of the premium price!

• Best for viewing

  Brighter deep sky
• Best for imaging

  Deep sky
• 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

  None
• Resolving power

  1.45arc*sec
• Lowest useful magnification

  12x
• Highest useful magnification

  160x
• Highest theoretical magnification

  160x
• Limiting stellar magnitude

  12.2
• Optical quality

  Diffraction limited
• Finder scope

  None
• Focuser

  2" Crayford
• Mount type

  Optical Tube without Mount
• Astro-imaging capability

  Lunar, planetary & long exposure
• Tube material

  Aluminum
• Length of optical tube

  23.5 in.
• Weight, optical tube

  5.7 lbs.
• Other features

  One element ED glass in apochromatic primary lens, Crayford focuser, Machined aluminum lens cell

*Special Order item, please contact us for delivery time*