General Optics

Discussion of optical systems and their characteristics.
New Topic
  • Topics
    Replies
    Views
    Last post
  • Optics Websites
    by mikemarotta »
    18 Replies
    17299 Views
    Last post by Don Pensack United States of America
  • Is this ruined?
    by Frazman United States of America »
    10 Replies
    259 Views
    Last post by Frazman United States of America
  • Understanding the (so-called) Dawes Limit
    by mikemarotta »
    3 Replies
    16624 Views
    Last post by Don Pensack United States of America
  • What has happened with the Explore Scientific love?
    by Lady Fraktor Slovakia »
    9 Replies
    302 Views
    Last post by Nakedgun United States of America
  • Bino-viewing
    by Nakedgun United States of America »
    1 Replies
    108 Views
    Last post by Lady Fraktor Slovakia
  • Purchased a 2" Altair Astro Prism Diagonal
    by davesellars »
    11 Replies
    412 Views
    Last post by Bigzmey United States of America
  • Prism versus diagonal in an old f/9 ED Vixen
    by John Baars Netherlands »
    10 Replies
    734 Views
    Last post by Lady Fraktor Slovakia
  • Monocular review
    by Butterfly Maiden Great Britain »
    4 Replies
    486 Views
    Last post by JayTee United States of America
  • Straight Spotting Scope???
    by Colorado Luckydog »
    9 Replies
    1047 Views
    Last post by Richard South Africa
  • Some lenses to play with on the cloudy days
    by j.gardavsky Germany »
    5 Replies
    3508 Views
    Last post by j.gardavsky Germany
  • Change your eye pupil size voluntarily?
    by AntennaGuy United States of America »
    15 Replies
    8584 Views
    Last post by AntennaGuy United States of America
  • Monolithic SCT from single cylider of glass
    by Chich Canada »
    0 Replies
    2471 Views
    Last post by Chich Canada
  • Coma correctors
    by turboscrew »
    6 Replies
    3889 Views
    Last post by turboscrew
  • Collimation change by off-center secondary's weight
    by SkyHiker United States of America »
    3 Replies
    1797 Views
    Last post by Don Pensack United States of America
  • The Conrady's Chromatic Condition ...
    by j.gardavsky Germany »
    7 Replies
    3387 Views
    Last post by Lady Fraktor Slovakia
  • Advances in telescope optics
    by The Happy Parrot »
    12 Replies
    4265 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
    3994 Views
    Last post by Ylem United States of America
  • 127mm Lens
    by LDW47 Canada »
    7 Replies
    2801 Views
    Last post by LDW47 Canada
  • Collimation tools for faster scopes?
    by turboscrew »
    22 Replies
    9156 Views
    Last post by Don Pensack United States of America
  • How to Calculate the Limits of Your Telescope
    by mikemarotta »
    8 Replies
    3552 Views
    Last post by Don Pensack United States of America
  • Issue with my Coronado PST: shift towards green
    by c12marin »
    4 Replies
    2218 Views
    Last post by Solsearcher
  • Aperture size and "seeing" conditions
    by Piet Le Roux South Africa »
    37 Replies
    13396 Views
    Last post by OzEclipse Australia
  • laser ray tracing the zenith prisms
    by j.gardavsky Germany »
    6 Replies
    2604 Views
    Last post by j.gardavsky Germany
  • Finally it looks as if my Antares Versascope will guide.
    by Greenman Great Britain »
    1 Replies
    1720 Views
    Last post by Greenman Great Britain
  • Difraction Rings
    by Jones »
    1 Replies
    1747 Views
    Last post by Bigzmey United States of America
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