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  1. Replies
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    1,973

    optical mirror glass

    First off the mirrors you want are special...called either (depending on who you ask) first surface or "top-coated..... When I need first-surface mirrors for repairs like in range-finders I get them...
  2. Polaroid SX-70 Optical Technology for LF Film?

    Greetings all......

    the question was posed......
    <<Also wondering if the folding optical path is an original Polaroid design or if someone in Dresden invented it 1909? >>

    To answer the...
  3. Replies
    62
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    26,868

    Legends of the large format lenses.

    Call me "old school" but while the modern lenses (post 1980) are nice, They all seem to me to be too clinical (sterile). They are wonderful if all you want is critical focus and absolute clarity....
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