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The 65cm Reflecting telescope
  • Aperture of main mirror: 60cm
  • Focal length: 2292mm
  • Focal ratio of main mirror: f/3.82


    • Corrected
  • Focal length: 2583mm
  • Focal ratio: f/4.23


  • Focal ratio of Cassegrain focus:f/15
  • Focal plane scale: 1mm£½81".27
  • Effective field of view after corrected: 50 arcsec
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    copyright©XL Observatory update Saturday, September 17, 2005 2:06 AM