General Optics

Discussion of optical systems and their characteristics.
New Topic
  • Topics
    Replies
    Views
    Last post
  • Optics Websites
    by mikemarotta »
    18 Replies
    24169 Views
    Last post by Don Pensack United States of America
  • How a lens creates an image
    by Nakedgun United States of America »
    3 Replies
    1186 Views
    Last post by John Baars Netherlands
  • What has happened with the Explore Scientific love?
    by Lady Fraktor Slovakia »
    41 Replies
    7760 Views
    Last post by Mike Q United States of America
  • Medidas del espejo primario y secundario
    by lunaluser Argentina »
    2 Replies
    1342 Views
    Last post by lunaluser Argentina
  • Focal Length
    by Graeme1858 Great Britain »
    13 Replies
    1849 Views
    Last post by Don Pensack United States of America
  • Bell Howell Objective 36" F/8 - What type of Lens Elements are in it?
    by TheButcher United States of America »
    7 Replies
    1404 Views
    Last post by Michael131313 Mexico
  • Last chance to purchase :)
    by Lady Fraktor Slovakia »
    2 Replies
    924 Views
    Last post by Lady Fraktor Slovakia
  • Correcting coma in my 102 f/5 Startravel
    by John Baars Netherlands »
    18 Replies
    3157 Views
    Last post by Lady Fraktor Slovakia
  • The Barlow Lens ?
    by Frankskywatcher United States of America »
    36 Replies
    5603 Views
    Last post by Frankskywatcher United States of America
  • Optical Reports
    by Lady Fraktor Slovakia »
    4 Replies
    1463 Views
    Last post by John Baars Netherlands
  • Zoom EP questions
    by Ylem United States of America »
    6 Replies
    1637 Views
    Last post by messier 111 Canada
  • Is this ruined?
    by Frazman United States of America »
    10 Replies
    1988 Views
    Last post by Frazman United States of America
  • Understanding the (so-called) Dawes Limit
    by mikemarotta »
    3 Replies
    18528 Views
    Last post by Don Pensack United States of America
  • Bino-viewing
    by Nakedgun United States of America »
    1 Replies
    1068 Views
    Last post by Lady Fraktor Slovakia
  • Purchased a 2" Altair Astro Prism Diagonal
    by davesellars »
    11 Replies
    2612 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
    2977 Views
    Last post by Lady Fraktor Slovakia
  • Monocular review
    by Butterfly Maiden Great Britain »
    4 Replies
    1888 Views
    Last post by JayTee United States of America
  • Straight Spotting Scope???
    by Colorado Luckydog »
    9 Replies
    3211 Views
    Last post by Richard South Africa
  • Some lenses to play with on the cloudy days
    by j.gardavsky Germany »
    5 Replies
    5169 Views
    Last post by j.gardavsky Germany
  • Change your eye pupil size voluntarily?
    by AntennaGuy United States of America »
    15 Replies
    11615 Views
    Last post by AntennaGuy United States of America
  • Monolithic SCT from single cylider of glass
    by Chich Canada »
    0 Replies
    3501 Views
    Last post by Chich Canada
  • Coma correctors
    by turboscrew »
    6 Replies
    5822 Views
    Last post by turboscrew
  • Collimation change by off-center secondary's weight
    by SkyHiker United States of America »
    3 Replies
    3152 Views
    Last post by Don Pensack United States of America
  • The Conrady's Chromatic Condition ...
    by j.gardavsky Germany »
    7 Replies
    5485 Views
    Last post by Lady Fraktor Slovakia
  • Advances in telescope optics
    by The Happy Parrot »
    12 Replies
    6507 Views
    Last post by Thomas_M44
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