Orion 10" f/8 Ritchey Chretien Reflecting OTA Telescope

ITEM #
OR-08266
  • Sale
  • Regular price $2,299.99
  • Orion 10" f/8 Ritchey Chretien Reflecting OTA Telescope

    • Sale
    • Regular price $2,299.99
    • ITEM #
      OR-08266

    0
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    Orion 10" f/8 Ritchey Chretien Reflecting OTA Telescope

    • 10" (250mm) aperture, f/8 Ritchey-Chretien optical tube optimized for astrophotographic use with APS-C and full-frame (35mm) CCD cameras and DSLRs
    • Features a big 3.3" rotatable dual-speed (10:1) Crayford focuser equipped with a sturdy linear-bearing to provide fine focus adjustment without slippage or flexure with heavy imaging accessories attached
    • Hyperbolic primary and secondary mirrors made of low-expansion quartz glass with enhanced aluminum coatings boast 96% reflectivity for bright imaging performance, and the secondary mirror is precisely center-marked to aid in collimation
    • Features two dovetail finder scope bases and a unique, Orion-exclusive slotted wide-format dovetail bar along the top of the telescope for easy attachment of imaging accessories
    • Three built-in 1.5" cooling fans accelerate cooling of the primary mirror to reach thermal equilibrium quickly

    Specifications

    Aperture250 mm (9.84")
    Dawes Limit0.46 arcseconds
    Focal Length2000 mm
    Focal Ratiof/8
    Hightest Magnification500x
    Light Gathering Power1276x
    Limiting Magnitude15.7
    Optical DesignRitchey Chretien
    Tube Length721mm
    Tube Weight35.3 lbs

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