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Orion Telescopes
Orion ED66 CF Carbon Fiber Refractor Telescope
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  • Compact refractor telescope with carbon fiber tube and top-quality ED optics
  • 66mm aperture, fully multi-coated ED optics deliver outstanding views, day or night
  • Dual-speed Crayford focuser provides optimal focus control without backlash or image-shift
  • Carbon fiber tube is more lightweight and thermally stable than metal tube telescopes
  • Includes 14mm wide-field 65-degree eyepiece, Deluxe 45-deg correct-image diagonal, and a hard carry case with die-cut foam insert

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Item #  40905

Featuring fully multi-coated FPL-51 ED glass optics, a dual-speed Crayford focuser and a carbon fiber optical tube, the ED66 Carbon Fiber Refractor is an amazingly versatile telescope. This compact performer measures just 12" long with its extendable dew shield retracted so you can take it anywhere you go.

This portable refractor's 66mm aperture (f/6.1) premium ED optics and small size make it a great telescope to bring along on road trips. The extra-low dispersion (ED) optics provide exquisite, true-color views without any chromatic aberrations or color-fringing for amazing optical performance. You'll be impressed by the ED66's performance under starry skies as you enjoy crisp, true-color views of the Moon, planets, and brighter deep sky objects. Thanks to the included Deluxe 45-degree diagonal, you can use the ED66 during the day to obtain sharp, color-correct views of earthbound objects and scenery.  

The ED66 CF features a carbon fiber optical tube, which is lighter and more thermally stable than metal to deliver crisp views even when temperatures fluctuate. The telescope's rotatable Crayford focuser made of CNC-machined aluminum provides dual-speed focus adjustment perfect for dialing in fine details of celestial and terrestrial targets. Compared to the coarse focus knob, the smaller fine-focus knob adjusts focus at a rate of 10:1, which really comes in handy when checking out rugged craters and valleys on the Moon, or when scanning distant horizons for wildlife. The Crayford focuser design eliminates pesky backlash and image-shift, so all your views will be sharp and steady.

The ED66 refractor comes with a 14mm focal length, 1.25" wide-field 65 eyepiece, which yields 29x magnification when used with the carbon fiber refractor. You can use other 1.25" size eyepieces with the ED66 to achieve different magnifications. For example, the ED66 CF refractor's 400mm focal length means using an optional 10mm eyepiece will yield 40x magnification (400/10 = 40). The included Deluxe 45 Correct-Image Diagonal boasts a large, 27mm clear aperture and a multi-coated prism which provides clear, high-contrast views that are right-side-up and correct left-to-right. A built-in mounting plate with threaded "-20 socket provides versatile mounting options for the telescope.

An included hard carry case with die-cut foam insert keeps the ED66 CF telescope and included accessories safe and clean during storage and transport.


Limited Warranty against defects in materials or workmanship for one year from date of purchase. This warranty is for the benefit of the original retail purchaser only. For complete warranty details contact us at 800-447-1001.

Product Support
Visit our product support section for instruction manuals and more
  • Best for viewing
    Nature & scenic
  • User level
  • Optical design
  • Front-end outside tube diameter
    3.33 in.
  • Optical diameter
  • Focal length
  • Focal ratio
  • Coatings
    Fully multi-coated
  • Optics type
    Air-spaced doublet
  • Glass material
    Extra low dispersion
  • Eyepieces
    Plossl 14.0mm (1.25")
  • Magnification with included eyepieces
  • Resolving power
  • Lowest useful magnification
  • Highest useful magnification
  • Highest theoretical magnification
  • Limiting stellar magnitude
  • Optical quality
    Diffraction limited
  • Finder scope
  • Focuser
    1.25" Crayford
  • Diagonal degrees
    1.25" 45° Prism Correct-image
  • Waterproof
  • Mount type
    Optical Tube without Mount
  • Astro-imaging capability
    Lunar, planetary & long exposure
  • Tube material
    Carbon graphite
  • Length of optical tube
    12.0 in.
  • Weight, optical tube
    3.8 lbs.
  • Additional included accessories
  • Other features
    Hard carrying case
  • Warranty
    One year

Orion ED66 CF 66mm ED Carbon Fiber Refractor Telescope optical tube assembly
Orion Deluxe 45-degree Correct-Image Prism Diagonal, 1.25"
14mm Wide-field 65-degree eyepiece, 1.25"
Hard carrying case with die-cut foam insert

Orders received by 1pm Eastern Standard Time for in-stock items ship the same business day. Order received after noon will ship the next business day. When an item is not in-stock we will ship it as soon as it becomes available. Typically in-stock items will ship first and backordered items will follow as soon as they are available. You have the option in check out to request that your order ship complete, if you'd prefer.

A per-item shipping charge (in addition to the standard shipping and handling charge) applies to this product due to its size and weight. This charge varies based on the shipping method.

Standard Delivery: $0.00
Standard Delivery to Canada: $10.00
3 Day Delivery: $30.00
2 Day Delivery: $30.00
Next Day Delivery: $40.00

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