General Optics

Discussion of optical systems and their characteristics.
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  • Aperture size and "seeing" conditions
    by Piet Le Roux »
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    Last post by Bigzmey
  • Difraction Rings
    by Jones »
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  • How to Calculate the Limits of Your Telescope
    by mikemarotta »
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    Last post by MistrBadgr
  • Geometrical optics and focuser
    by turboscrew »
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    Last post by ARock
  • night vision
    by yobbo89 »
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  • Collimation tools for faster scopes?
    by turboscrew »
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