Orion 8" f/8 Ritchey Chretien Reflecting OTA Telescope

Brand: Orion

SKU : OR-08267

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Product Details

    • 8" (200mm) aperture Ritchey Chretien optical tube ideal for use with DSLR cameras and small-format CCDs to produce wonderfully flat, virtually coma-free astrophotos
    • 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
    • A rotatable, machined dual-speed (10:1) Crayford focuser equipped with a sturdy linear-bearing provides precise focus adjustment without slippage or flexure with heavy astrophotography accessories attached
    • Three included focus extension rings (one 2" and two 1") allow focus position adjustment for use with various imaging cameras and astrophotography accessories
    • Features two dovetail finder scope bases and a unique, Orion-exclusive slotted narrow dovetail bar along the top of the tube for easy accessory attachment
  • specifications

    Aperture200 mm (8")
    Dawes Limit0.58 arcseconds
    Focal Length1600 mm
    Focal Ratiof/8
    Highest Magnification400x
    Light Gathering Power816x
    Limiting Magnitude15.3
    Optical DesignRitchey Chretien
    Tube Length559mm
    Tube Weight18.5 lbs
  • included items

    • Orion 8" f/8 Ritchey-Chrétien Astrograph Telescope with 2" dual-speed linear-bearing Crayford focuser
    • Extension tube, 2" length (x1)
    • Extension tube, 1" length (x2)
    • Starry Night SE astronomy software digital download insert

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