Orion ED80 80mm f/7.5 Apochromatic Refractor Telescope
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Orion ED80 80mm f/7.5 Apochromatic Refractor Telescope

Orion ED80 represents an exceptional value for those seeking the apochromatic experience on a limited budget. We recall when this telescope first landed on US shores over a dozen years ago, creating quite a stir. At least one manufacturer of premium refractors quickly retired their line of ED achromats to focus exclusively on apochromats once this new price point was established. While advertised as an apochromatic refractor, we prefer to call it what it is: an ED achromat.

So what is an apochromatic refractor anyway? By definition, an apochromatic refractor brings three widely separated wavelengths of light into focus at the same plane. How widely separated? The definition does not say. This allows for a certain amount of wiggle room in what may be called an apochromatic refractor. Suffice it to say that those wavelengths will be far more widely separated in the true apochomats selling for many times more. Purchasers of this telescope will realize 80% of the benefits of a true apochromat at less than 50% of the cost, and we think that's a good deal.

  • Transmits spectacular views of deep-sky delicacies as well as closer solar system targets for visual enjoyment or astrophotography pursuits
  • 80mm refractor objective doublet includes one element of high-quality FPL-53 ED or extra-low dispersion glass, which virtually eliminates false color
  • Features a smooth-adjusting 2" aluminum Crayford focuser that accepts 2" or 1.25" astronomy accessories for a wide variety of applications
  • Optical tube assembly only, does not include telescope mount or tripod - which can be purchased separately

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!

Sold as refractor optical tube assembly only, without accessories. Compatible tube rings are #7371, sold separately. Finished in gunmetal gray metallic.

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Our price: $449.00

In Stock - Ships Same Business Day Before 4 PM
 


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SKU09895
Telescope Type ED Achromatic Refractor
Aperture (mm) 80 mm
Focal Ratio f/7.5
Focal Length 600 mm
Limiting Visual Magnitude 12.2
Focuser Type Crayford
Focuser Size 2-inch
Star Diagonal None
Weight Fully Assembled 5.7 lbs.
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