objective

  1. Chujybear

    200 mm objective equivalancy

    What would be the equivalent to an f 200 objective? F400? I believe .5 is f 175. I'd like to know if I'm wrong on that account to. Thanks, if anybody knows how this works. G Not applicable here. But fyi. I have used a 6, Or maybe it was -6 diopter as a workable objective...
  2. Chujybear

    Leica mz6 objective

    Have assembled a pretty mean mz6 over the years. Had ground down a lens to serve as an objective, but that went missing in a move. I always scour around for the correct lens, but.... Was wondering if anybody with an m series Leica, or a wild ms5, have found that any other brands of objective...

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