Orion 8" F/4.9 Newtonian Reflector OTA

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Orion 8" F/4.9 Newtonian Reflector OTA

  • 203mm (8") aperture and 1000mm focal length f/4.9 reflector telescope optical tube for eye-popping views of deep sky and solar system objects alike
  • Also works well as an astrophotography telescope for shooting wide-field subjects
  • Features a 2" Crayford focuser with a step-down adapter for use of both 2" and 1.25" eyepieces and accessories
  • Reflector optical tube weighs 16.5 lbs.
  • Includes dust caps for telescope front aperture and focuser, camera adapter, collimation cap, dovetail finder scope base, and Starry Night astronomy software download card - tube rings and other accessories sold separately

    Aperture203 mm (8")
    Focal Ratiof/4.9
    Focuser StyleRack & Pinion
    Highest Useful Magnification300x
    Limiting Stellar Magnitude14.2
    Optical DesignNewtonian
    Tube Length965mm
    Tube Weight16.5 lbs
    Warranty1 Year Warranty


    Ask a Question
    • What type of mounting plate does this need to mount to a Celestron AVX ?

      If you get the mounting rings for this optical tube, you will need a Vixen-style, or V-style dovetail plate, as the AVX uses a Vixen-style receiver.

    • It's weight is about 8 kg, so formally its ok to mount it on HEQ5 (which carries up to 10 kg), right?

      Yes, this telescope will work on the HEQ5 mount, although you will need to take care with what accessories you attach to the scope with that mount.

    • Actually I have 2.......long story short, I've been stargazing for over 5 years now.........yaaaaaa, and so am a total rookie. I have 2 telescope, 6 inch galileo and a ten inch orion, and DID understand focal lengths but can't seem to grasp a longer focal

      The telephoto nature of the SCT design (telephoto literally meaning longer in optical focal-length than physical length) is a result of the curvature of the two mirrors. The primary is concave, and the secondary is convex. Combining the two results in a

    • in braslian dinner that price is?

      All pricing on the website is in US dollars. Given constant changes in the international currency exchanges, we cannot display pricing in other currencies.