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Cleaning the iris diaphragm on FD100f2.8

Discussion in 'Adapted Lenses' started by pellicle, Jan 7, 2019.

  1. pellicle

    pellicle TalkEmount Veteran

    I decided to put this on my blog because it may be of use for some people. The blog also links to some other more detailed sites of high worth.

    in my view ...: fixing a stuck aperture - win or bin

    In short I went in through the front and was able to clean my aperture iris blades of oil without disassembling the back (as gnashsings did) but re-alignment of the helicoid and matching the aperture control levers was tedious. I could not have done it without an FD adapter which allowed me to "open and close" the diarphram.

    If you're facing the decision as to bin or (attempt a) win then I suggest you read that post and associated links.

    Just be aware also that you should work with the lens facing up, for after you've removed the front filter thread mount and hood bayonet

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    the lens will just fall out into your hand, so have a tissue ready over the front so that it doesn't fall into your dirty hand.

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    Lens is now doing just fine and stopping down perfectly again.
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    Last edited: Jan 13, 2019
    • Informative Informative x 2
  2. GoldMark

    GoldMark TalkEmount Regular

    Jan 12, 2019
    Neckartailfingen, Germany
    Bernhard Schmickt
    Thx for sharing this information. :2thumbs:
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