General Optics

Discussion of optical systems and their characteristics.
New Topic
  • Topics
    Replies
    Views
    Last post
  • Optics Websites
    by mikemarotta »
    18 Replies
    15484 Views
    Last post by Don Pensack
  • Purchased a 2" Altair Astro Prism Diagonal
    by davesellars »
    10 Replies
    135 Views
    Last post by davesellars
  • Prism versus diagonal in an old f/9 ED Vixen
    by John Baars »
    10 Replies
    492 Views
    Last post by Lady Fraktor
  • Monocular review
    by Butterfly Maiden »
    4 Replies
    323 Views
    Last post by JayTee
  • Straight Spotting Scope???
    by Colorado Luckydog »
    9 Replies
    794 Views
    Last post by Richard
  • Understanding the (so-called) Dawes Limit
    by mikemarotta »
    2 Replies
    16359 Views
    Last post by helicon
  • Some lenses to play with on the cloudy days
    by j.gardavsky »
    5 Replies
    3305 Views
    Last post by j.gardavsky
  • Change your eye pupil size voluntarily?
    by AntennaGuy »
    15 Replies
    8269 Views
    Last post by AntennaGuy
  • Monolithic SCT from single cylider of glass
    by Chich »
    0 Replies
    2325 Views
    Last post by Chich
  • Coma correctors
    by turboscrew »
    6 Replies
    3663 Views
    Last post by turboscrew
  • Collimation change by off-center secondary's weight
    by SkyHiker »
    3 Replies
    1618 Views
    Last post by Don Pensack
  • The Conrady's Chromatic Condition ...
    by j.gardavsky »
    7 Replies
    3116 Views
    Last post by Lady Fraktor
  • Advances in telescope optics
    by The Happy Parrot »
    12 Replies
    3959 Views
    Last post by Thomas_M44
  • 10 Inch Dob Under Bortle 4 Skies Vs. 6 Inch Refractor Under Bortle 2 Skies
    by Refractordude »
    10 Replies
    3698 Views
    Last post by Ylem
  • 127mm Lens
    by LDW47 »
    7 Replies
    2590 Views
    Last post by LDW47
  • Collimation tools for faster scopes?
    by turboscrew »
    22 Replies
    8549 Views
    Last post by Don Pensack
  • How to Calculate the Limits of Your Telescope
    by mikemarotta »
    8 Replies
    3277 Views
    Last post by Don Pensack
  • Issue with my Coronado PST: shift towards green
    by c12marin »
    4 Replies
    2054 Views
    Last post by Solsearcher
  • Aperture size and "seeing" conditions
    by Piet Le Roux »
    37 Replies
    12603 Views
    Last post by OzEclipse
  • laser ray tracing the zenith prisms
    by j.gardavsky »
    6 Replies
    2428 Views
    Last post by j.gardavsky
  • Finally it looks as if my Antares Versascope will guide.
    by Greenman »
    1 Replies
    1587 Views
    Last post by Greenman
  • Difraction Rings
    by Jones »
    1 Replies
    1598 Views
    Last post by Bigzmey
  • Geometrical optics and focuser
    by turboscrew »
    6 Replies
    3123 Views
    Last post by ARock
  • night vision
    by yobbo89 »
    5 Replies
    3126 Views
    Last post by yobbo89
New Topic

Return to Board Index

Forum permissions


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum