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Thread: Help please! Mystery light leak - causes?

  1. #1

    Join Date
    Oct 2021
    Posts
    2

    Help please! Mystery light leak - causes?

    Hello everyone, hope you can help. Have been experiencing some odd light leaks - or flare. I recently purchased a great condition Wista and a couple of lenses - also mint looking - yet have had results come back with a very odd flare I can't figure out. I have inspected the bellows quite thoroughly in a dark room with a flashlight - front to back, racked out, raised and twisted and can't see a problem there. I haven't kept notes on my shots, but I "think" it only occurs on my 90mm Nikkor lens which is on a recessed board. Shots on the Rodenstock 135 are fine. The 90mm is not scratched or even dusty when given the flashlight test. Lens appears fine - blades are not sticking and the exposures seem okay aside from the flare. The lab I use for processing is a pro lab and they have not had it on anyone else's work and are equally mystified. If it was a light leak, would the film not just be fogged? This looks focused to me, and is in a similar place each time, although might have rotated with the back (on the portrait orientation shot...). Apologies, these are contact sheets snapped on my phone.

    Ideas?

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  2. #2

    Join Date
    Aug 2018
    Posts
    287

    Re: Help please! Mystery light leak - causes?

    First one is excellent, plan better for the next shots, maybe sun in a better position
    It's bellows, camera, back, lens board, front standard or shutter.
    The shutter has two positions when closed, did you test both before and after firing?

    Sent fra min SM-G975F via Tapatalk

  3. #3

    Join Date
    Oct 2021
    Posts
    2

    Re: Help please! Mystery light leak - causes?

    Haha thanks! Well not too much sun in London this year! for these shots didn't really have the luxury of waiting for light - blocking pavements and a big camera in a rough neighbourhood not very subtle...;D
    Yeah I tried looking at the leaks, can't seem to see any. not really sure how to check the shutter.

  4. #4

    Join Date
    Aug 2018
    Posts
    287

    Re: Help please! Mystery light leak - causes?

    In a dark room, flash light against the lens in both shutter positions.

  5. #5

    Re: Help please! Mystery light leak - causes?

    Sometimes you can get flare of that sort if you have a wide angle lens and a light source just outside the image area. Even with a MC lens.

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