Orion 203mm f/4.9 Reflector Telescope Optical Tube Assembly
Item #09788e
4.6 / 5.0
€ 279.99
This Orion 203mm Reflector optical tube is perfect for those intermediate observers who already own an equatorial mount. Use the included camera adapter and attach this to your fav...
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This Orion 203mm Reflector optical tube is perfect for those intermediate observers who already own an equatorial mount. Use the included camera adapter and attach this to your favorite DSLR or CCD camera to begin your astrophotography journey.
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  • More Info
    • 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
  • Specs
    • Best for viewing:
      Brighter deep sky
    • Best for imaging:
      Deep sky
    • User level:
      Intermediate
    • Optical design:
      Reflector
    • Optical diameter:
      203 mm
    • Focal length:
      1000 mm
    • Focal ratio:
      f/4,9
    • Optics type:
      Parabolic
    • Glass material:
      Soda-lime plate
    • Eyepieces:
      None
    • Resolving power:
      0,57 arc*sec
    • Lowest useful magnification:
      29 x
    • Highest useful magnification:
      300 x
    • Highest theoretical magnification:
      406 x
    • Limiting stellar magnitude:
      14,2
    • Optical quality:
      Diffraction limited
    • Focuser:
      2" Crayford
    • Secondary mirror obstruction:
      58 mm
    • Secondary mirror obstruction by diameter:
      29 %
    • Secondary mirror obstruction by area:
      8 %
    • Mirror coatings/over-coatings:
      Aluminum & Silicon Dioxide
    • Mount type:
      Optical Tube without Mount
    • Astro-imaging capability:
      Lunar, planetary & long exposure
    • Tube material:
      Steel
    • Length of optical tube:
      96,5 cm
    • Weight, optical tube:
      7,5 kg
    • Weight, fully assembled:
      7,5 kg
    • Additional included accessories:
      Collimation cap
    • Other features:
      2" focuser with 1 1/4" adapter
    • Warranty:
      One year
  • Shipping Info

    Orders received by 5pm UTC for in-stock items 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.

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