Optics

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  • The 1X / 2X / 3X Magnification Protocol for eyepiece set selection
    by Don Pensack »
    23 Replies
    2331 Views
    Last post by Bigzmey
  • Evolution of Eyepieces by Chris Lord
    by notFritzArgelander »
    19 Replies
    15791 Views
    Last post by j.gardavsky
  • Optics Websites
    by mikemarotta »
    18 Replies
    3204 Views
    Last post by Don Pensack
  • A Guide to choosing eyepieces
    by OleCuss »
    13 Replies
    14525 Views
    Last post by OleCuss
  • Creating a basic set of eyepieces for your new telescope
    by Lady Fraktor »
    65 Replies
    31364 Views
    Last post by tomthetank
  • Rubber eyeguard for the eyepieces
    by j.gardavsky »
    7 Replies
    94 Views
    Last post by j.gardavsky
  • binoviewing televue 85 .
    by messier 111 »
    11 Replies
    108 Views
    Last post by messier 111
  • Steve Tonkin Talk
    by Graeme1858 »
    1 Replies
    45 Views
    Last post by helicon
  • Mystery 1.25" 25 or 24mm reverse kellner/RKE eyepiece?
    by realflow100 »
    4 Replies
    79 Views
    Last post by realflow100
  • Show us your planetary eyepieces!
    by WilliamPaolini »
    32 Replies
    991 Views
    Last post by Highburymark
  • Docter/Noblex 12.5mm 84° ..... are back soon.
    by 25585 »
    13 Replies
    261 Views
    Last post by 25585
  • Understanding the (so-called) Dawes Limit
    by mikemarotta »
    1 Replies
    152 Views
    Last post by Makuser
  • Some lenses to play with on the cloudy days
    by j.gardavsky »
    5 Replies
    234 Views
    Last post by j.gardavsky
  • Canon 10X30 IS II
    by John Baars »
    6 Replies
    374 Views
    Last post by The Happy Parrot
  • ASTRO BERLIN ORTH, Another missing link in the Evolution Tree of Eyepieces
    by j.gardavsky »
    9 Replies
    332 Views
    Last post by j.gardavsky
  • 15x70s -> 20x80s?
    by pakarinen »
    6 Replies
    156 Views
    Last post by pakarinen
  • Change your eye pupil size voluntarily?
    by AntennaGuy »
    15 Replies
    733 Views
    Last post by AntennaGuy
  • What is your favourite AFOV?
    by Lady Fraktor »
    43 Replies
    2753 Views
    Last post by Ylem
  • Burgess Optical
    by Lady Fraktor »
    16 Replies
    1158 Views
    Last post by WilliamPaolini
  • Monolithic SCT from single cylider of glass
    by Chich »
    0 Replies
    255 Views
    Last post by Chich
  • Coma correctors
    by turboscrew »
    6 Replies
    317 Views
    Last post by turboscrew
  • Finder for 20x80s
    by KathyNS »
    6 Replies
    393 Views
    Last post by John Baars
  • How many eyepieces should we have?
    by Seeker »
    84 Replies
    5306 Views
    Last post by Lady Fraktor
  • Buying bino
    by Capt. Midnight »
    13 Replies
    843 Views
    Last post by pakarinen
  • Collimation change by off-center secondary's weight
    by SkyHiker »
    3 Replies
    243 Views
    Last post by Don Pensack

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