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  1. #1

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    Strange light brackets

    Hello,

    I,m Case-ie and this is my first post

    I have a problem with my Pentax ME Super, On a few roles of film now strange light brackets appear on the negatives and also between them. It's on always a few following negatives and with a lot of variation. If anybody has an idea what causes this, i'll be very pleased to hear it.

    Case-ie
    Attached Thumbnails Attached Thumbnails FEP1267.jpg   FEP1308.jpg   FEP1323.jpg   FEP1313.jpg   FEP1339.jpg  

    Last edited by case-ie; 03-28-2013 at 07:48 AM. Click to view previous post history.

  2. #2

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    Do you know if the foam seals have been replaced on this camera? I would start here.

    The foam seals degrade over time and can cause light leaks. If they've been replaced, then the next part of the discussion will begin.

  3. #3
    AgX
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    With a light leak artefefact #1could not be explained.

    I'm rather thinking of a exposure moving perpendicular to the shutter movement. This could explain the bent streaks.
    Last edited by AgX; 03-28-2013 at 09:30 AM. Click to view previous post history. Reason: wording

  4. #4

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    You're right. That does look like a shutter fault. I wonder if some debris (perhaps, old foam or a tiny piece of film or something else) has gotten into the shutter mechanism.

  5. #5

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    Possible light leak.

    Jeff

  6. #6

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    Sticking mirror, or the mirror is coming down before the exposure has finished. Perhaps related to a disintegrating or sticky mirror bumper.

  7. #7
    Peltigera's Avatar
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    I thought mirror - it looks like reflection - with the straight line at the top and then fading away towards the bottom.

  8. #8

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    Try this. Connect a flash to the camera with a PC cord. Don't mount the flash in the shoe. Remove the lens, and use the flash to freeze the motion of the shutter curtains. At synch speed or below, there should be a clear film gate, and the mirror should be well tucked up. At speeds above the synch speed, there will be a slit - the higher the shutter speed, the narrower the slit. The slit width should stay uniform for a given speed, and you should still be able to see whether the mirror is out of the way. Don't look directly at the flash!

    This isn't an infallible test, due to the very short duration of the flah, but it might show you something - such as shutter wierdness.

  9. #9

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    Thanks for your quick replies. I had mirror and shutter controlled in a analog camerashop no problems there. Of course they test them without the lens on. Sometimes parts of the picture are not lighted that must be a shutter problem.But the brackets go on on the unlighted areas between the negatives. And the mirror folds up and away from the film, reflection seems difficult.

  10. #10

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    Quote Originally Posted by Peltigera View Post
    I thought mirror - it looks like reflection - with the straight line at the top and then fading away towards the bottom.
    agree. however if never given a good CLA won't hurt

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