General Optics

Discussion of optical systems and their characteristics.
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  • Issue with my Coronado PST: shift towards green
    by c12marin »
    4 Replies
    136 Views
    Last post by Solsearcher
  • Collimation tools for faster scopes?
    by turboscrew »
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    Last post by SkyHiker
  • How to Calculate the Limits of Your Telescope
    by mikemarotta »
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    Last post by John Fitzgerald
  • Aperture size and "seeing" conditions
    by Piet Le Roux »
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    Last post by OzEclipse
  • laser ray tracing the zenith prisms
    by j.gardavsky »
    6 Replies
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    Last post by j.gardavsky
  • Finally it looks as if my Antares Versascope will guide.
    by Greenman »
    1 Replies
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    Last post by Greenman
  • Difraction Rings
    by Jones »
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    Last post by Bigzmey
  • Geometrical optics and focuser
    by turboscrew »
    6 Replies
    630 Views
    Last post by ARock
  • night vision
    by yobbo89 »
    5 Replies
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    Last post by yobbo89
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