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  1. #11
    Murray Kelly's Avatar
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    Jan 2007
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    It looks terribly like the flare I get from one of my Helios-103 1.8/52 lenses on a Kiev mount. Always in the same place, and quite impossible to predict from the observed image in the viewfinder.

    Have a good look and check there isn't any delamination of any of the elements in the lens. Could be it needs some black paint judiciously applied to one of the groups.

    Murray

  2. #12

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    Thanks for the additional ideas, folks. I'll look at the back and the way it fits once again. How do I check for lens delamination?

    --Ben

  3. #13
    toyotadesigner's Avatar
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    I've checked your image. For a light leak the shape a bit too irregular. Try this: without a film advance the lever, turn and push the lens in. Then check the rear lens element: any scratch on it? Even if it is a tiny one it could be the reason. Scratches or a hair on the rear lens element can cause the weirdest effects if the light is at a certain position during exposure. In your case the irregularity should be located between 7 to 8 o clock when the lens is retracted.
    Don't dream your life - live your dream.
    I'm using FILM because nature isn't made of squares.

  4. #14

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    Diverting attention, however briefly, from the Leica discussion…

    After Toyota Designer's post I went back and took another look at the rear element of the lens. At first glance it looked pristine. But, held at a certain angle, I could see little bits of gunk in several places. There is, as suggested above, a tiny deposit at about 7:00; there's also stuff at 11:00 and more just left of center. I should emphasize that the deposits are barely visible, but I suppose it is possible that they are causing the problem I'm seeing. In any case, I'll try cleaning this up (any hints on how to do it without scratching the lens?) and hope that solves the problem.

    --Ben

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