Orion Apex 90mm Maksutov-Cassegrain Telescope
Item #09820e
4.7 / 5.0
€ 209.99
The Orion Apex 90mm Maksutov-Cassegrain telescope is both high-power and compact - perfect for the beginner for both astronomy and terrestrial viewing. The correct-image finder sc...
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The Orion Apex 90mm Maksutov-Cassegrain telescope is both high-power and compact - perfect for the beginner for both astronomy and terrestrial viewing. The correct-image finder scope makes locating objects easy.
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  • More Info
    • Nifty little 90mm (3.5") aperture Maksutov-Cassegrain telescope provides long focal length performance in a conveniently compact instrument
    • 90mm aperture and 1250mm focal length Maksutov-Cassegrain optics for fantastic celestial and terrestrial views, especially at higher powers
    • An ideal telescope for scanning the solar system for views of the Moon and planets, as well as globular star clusters and some bright nebulas
    • Includes a 25mm Sirius Plossl eyepiece, 6x20 correct-image finder scope for accurate aiming during the day or at night, 45-degree correct-image diagonal, soft carry-case, and Starry Night astronomy software
    • Does not include tripod or mount - either can be purchased separately
  • Specs
    • Best for viewing:
      Lunar & planetary
    • Best for imaging:
      Lunar & planetary
    • User level:
      Beginner
    • Optical design:
      Maksutov-Cassegrain
    • Optical diameter:
      90 mm
    • Focal length:
      1250 mm
    • Focal ratio:
      f/13,9
    • Eyepieces:
      Sirius Plossl 25,0 mm (1,25")
    • Magnification with included eyepieces:
      50 x
    • Resolving power:
      1,29 arc*sec
    • Lowest useful magnification:
      13 x
    • Highest useful magnification:
      180 x
    • Highest theoretical magnification:
      180 x
    • Limiting stellar magnitude:
      12,5
    • Optical quality:
      Diffraction limited
    • Finder scope:
      6x20 Correct-image
    • Focuser:
      Internal
    • Diagonal degrees:
      1,25" 45° Prism Correct-image
    • Secondary mirror obstruction:
      29 mm
    • Secondary mirror obstruction by diameter:
      32 %
    • Secondary mirror obstruction by area:
      10 %
    • Mirror coatings/over-coatings:
      Aluminum & Silicon Dioxide
    • Mount type:
      Optical Tube without Mount
    • Astro-imaging capability:
      Lunar & planetary
    • Tube material:
      Aluminum
    • Length of optical tube:
      25,4 cm
    • Weight, optical tube:
      1,7 kg
    • Weight, fully assembled:
      1,6 kg
    • Additional included accessories:
      Optical tube carry case
    • Other features:
      2nds are covered by Orion's Satisfaction Guarantee
    • Warranty:
      One year
  • In The Box

    Orion Apex 90mm Maksutov-Cassegrain Telescope optical tube assembly
    25mm Orion Sirius Plössl telescope eyepiece (1.25")
    45º correct-image diagonal (1.25")
    6x20 correct-image finder scope
    Finder scope bracket with O-ring
    Dust cap
    Soft telescope carry case
    Starry Night Special Edition astronomy software download card

  • 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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