Optics

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  • A Guide to choosing eyepieces
    by OleCuss »
    9 Replies
    10596 Views
    Last post by notFritzArgelander
  • Creating a basic set of eyepieces for your new telescope
    by Lady Fraktor »
    65 Replies
    21905 Views
    Last post by tomthetank
  • Evolution of Eyepieces by Chris Lord
    by notFritzArgelander »
    12 Replies
    11378 Views
    Last post by Piet Le Roux
  • Burgess Optical
    by Lady Fraktor »
    0 Replies
    29 Views
    Last post by Lady Fraktor
  • Best 7mm, 6mm, 5mm, and 4mm Eyepieces for the Moon
    by Refractordude »
    23 Replies
    973 Views
    Last post by j.gardavsky
  • Issue with my Coronado PST: shift towards green
    by c12marin »
    4 Replies
    124 Views
    Last post by Solsearcher
  • Collimation tools for faster scopes?
    by turboscrew »
    18 Replies
    1110 Views
    Last post by SkyHiker
  • How to Calculate the Limits of Your Telescope
    by mikemarotta »
    7 Replies
    409 Views
    Last post by John Fitzgerald
  • ES 62 deg EPs experience
    by Bigzmey »
    8 Replies
    224 Views
    Last post by MistrBadgr
  • Ordered Orion Giantview 15x70s
    by pakarinen »
    12 Replies
    931 Views
    Last post by Refractordude
  • Aperture size and "seeing" conditions
    by Piet Le Roux »
    37 Replies
    2725 Views
    Last post by OzEclipse
  • Are These Two Eyepieces The Same?
    by Refractordude »
    4 Replies
    182 Views
    Last post by Bigzmey
  • Updating EP collection - help requested
    by turboscrew »
    21 Replies
    334 Views
    Last post by OzEclipse
  • Focus on Simon Ploessl
    by mikemarotta »
    22 Replies
    1257 Views
    Last post by Ruud
  • laser ray tracing the zenith prisms
    by j.gardavsky »
    6 Replies
    176 Views
    Last post by j.gardavsky
  • Plossl type eyepiece comparison
    by Lady Fraktor »
    11 Replies
    260 Views
    Last post by Bigzmey
  • Pentax SMC XW 30mm and 40mm: The old and the new R
    by j.gardavsky »
    3 Replies
    111 Views
    Last post by j.gardavsky
  • Finally it looks as if my Antares Versascope will guide.
    by Greenman »
    1 Replies
    75 Views
    Last post by Greenman
  • Pentax XWs are on sale now
    by Bigzmey »
    12 Replies
    557 Views
    Last post by Bigzmey
  • Zeiss eyepiece nomenclature ?
    by StarBru »
    12 Replies
    277 Views
    Last post by j.gardavsky
  • Difraction Rings
    by Jones »
    1 Replies
    126 Views
    Last post by Bigzmey
  • Any ES 52 deg Eyepiece Experience Yet?
    by MistrBadgr »
    23 Replies
    1160 Views
    Last post by MistrBadgr
  • 80 and 85mm Plossls
    by Bigzmey »
    23 Replies
    697 Views
    Last post by DeanD
  • Selected ES EPs are on sale
    by Bigzmey »
    2 Replies
    162 Views
    Last post by MistrBadgr
  • New Meade EP 82 and 60 FOV lines
    by Bigzmey »
    8 Replies
    651 Views
    Last post by Bigzmey

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