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Thread: Help identify what caused this light leak

  1. #1

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    Help identify what caused this light leak

    Does anyone have any ideal of what caused this light leak? After I developed the film I tested my bellows and they were light tight, and judging by the negative the leak did not happen while the negative was in the film holder, but im still not sure what happened.

    I developed this using the taco method in a 120 daylight tank if that helps at all. Anyway here is the shot, thanks for the help.


  2. #2

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    Re: Help identify what caused this light leak

    Wrong forum, sorry guys. Mod's if you could move this to the Image Sharing & Discussion forum.

    Thanks

  3. #3
    Octogenarian
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    Re: Help identify what caused this light leak

    Was the center tube in the roll film tank before turning on the lights?

  4. #4
    Randy's Avatar
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    Re: Help identify what caused this light leak

    Sure looks like a meteor strike to me. You didn't feel a heat flash and hear a large boom while exposing the neg?

  5. #5

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    Re: Help identify what caused this light leak

    Quote Originally Posted by Gem Singer View Post
    Was the center tube in the roll film tank before turning on the lights?
    My tank does not require a central tube.

    Quote Originally Posted by Randy View Post
    Sure looks like a meteor strike to me. You didn't feel a heat flash and hear a large boom while exposing the neg?
    I guess i should check for meteors falling next time i take a shot ha!

  6. #6
    All metric sizes to 24x30 Ole Tjugen's Avatar
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    Re: Help identify what caused this light leak

    THat's a light leak immediately before or after exposure, while the dark slide was out.

    At the top of the picture, you see the light going a little bit beyond the rebate made by the holder. At the bottom, the main light starts a little INSIDE the edge of the rebate. That means that the light entered at an acute angle from above, while the dark slide was pulled.

    I think you have rattled the holder too much while pulling or inserting the slide.

    Guess how I know.

  7. #7
    Vaughn's Avatar
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    Re: Help identify what caused this light leak

    I agree with Ole -- definitly while the film was in the holder and probably just as the darkslide was removed from the holder before taking the image. The darkslide was probably pulled back a little upon removal (only because we tend to be a little more careful re-inserting the darkslide).

    How strong are the springs holding the back on? If they are weak, you might want to keep your thumb pressed against the GG as you remove and re-insert the darkslide as a precaution.

  8. #8

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    Re: Help identify what caused this light leak

    I do recall that the dark slide was being stubborn when I was reinserting it, my springs are not that strong ether so I will keep that in mind from now on.

    Thanks guys!

  9. #9
    Vaughn's Avatar
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    Re: Help identify what caused this light leak

    Also -- stubborn darkslides can be appeased with hand rubbing with a cotton cloth, or if that does not help enough, a slight spray of furniture polish and a good buffing.

    Vaughn

    PS -- When I lay the darkslide down to buff it, I use a little paper to even out the height difference between the darkslide pull/handle and the darkslide itself to keep from stressing it.

  10. #10
    Has Been LF Photographer
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    Re: Help identify what caused this light leak

    It can be helpful to place your dark cloth over the top of the camera when removing and inserting the dark slide.

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