Pre-exposed film?

Discussion in '35mm Cameras' started by William D. Tallman, Sep 26, 2003.

  1. Running a late '80s LX that's got good seals and has been "sticky_mirror
    remediated. Excellent negatives for very many of rolls of film.

    Then I get one back from processing that has most of the frames ruined by a
    bright green streak from edge to edge across the frame. There is a larger
    splatter of green at the edge with the frame numbers, and each streak is
    either exactly on, or very close to, the frame number.

    The streaks are not of the same intensity for each frame, and there is no
    regularity to the differences. Some frames are completely free of the
    green, and others only have green on and around the frame number.

    Subsequent rolls through the LX are nominal.

    As far as I know, the green color simply means exposure to light and has no
    specific significance, or am I wrong?

    Is it possible that this roll was exposed during the imprinting of frame
    numbers? I can see no way that a simple cassette leak would produce that
    kind of registration, and have been unable to duplicate the phenomenon in
    the camera, nor can I see how it could have happened.

    Any ideas, or has anyone seen this sort of thing?

    Oh.. the film? Fuji Superia 100 36exp from B&H, and yep, it's the
    imported stuff.

    Thanks,

    Bill Tallman
     
    William D. Tallman, Sep 26, 2003
    #1
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  2. Something similar happened to me once, and the developer said the film
    wasn't loaded correctly.In my case, the film was not wound correctly on the
    reel, and it was in contact with itself, preventing full development. My
    recollection is that there was either a green or yellow stripe where the
    contact occurred.
    I'd blame the processor. Is the film crimped?
     
    Phil Stripling, Sep 26, 2003
    #2
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  3. Interesting. No, the film shows no sign of crimping. The processing place
    is the local photo amateur hangout, and they're really picky about their
    work. It's the oldest drug store in town, where the proprietor is a camera
    buff with a collection of oldy-moldy-foldies on display. The gal who runs
    the processing department is scrupulous about maintenance, and her machines
    are clean enough that I can get roll film processed most any time with no
    problem. So I'm loathe to complain, as I'm getting film done for $2.00US a
    cassette any length.

    Argh!!!

    I think you're right, though, as the splotching looks more like a liquid
    than a light leak. Oh well, hope it never happens again... <grin>

    Thanks,

    Bill Tallman
     
    William D. Tallman, Sep 26, 2003
    #3
  4. William D. Tallman

    Bandicoot Guest

    [SNIP]

    Green sounds a lot more like a processing problem than a light leak - light
    leaks usually produce orange and/or completely burnt out areas. Do the
    streaks have 'feathered' edges like ligh shining under a door into a
    darkened room, or do they look more like spills of liquid?

    I'd talk to the processor about it - they probably have terms that limit
    their liability to giving you a replacement roll of film, but even that is
    worth having. If you are a good customer you might get a bit more: last
    time a lab damaged a film of mine they hand printed all the salvageable
    frames for me at no extra cost - which was more than they were obliged to do
    but was, I thought, pretty fair in the circumstances.



    Peter
     
    Bandicoot, Sep 26, 2003
    #4
  5. Bandicoot wrote:

    I think it looks more like liquid, but there are some unexplained attributes
    of this phenomenon.

    The stripes are exactly frame regular: they appear at the same place in
    each frame. I would expect that if the processor is at fault, it would
    have to be at some point where the film was being contacted during the
    development process at exactly frame intervals. That's what I would have
    to investigate.

    The second thing is that the green color is almost exactly the reverse of
    the mask color. I scanned an offending frame, and the stripe was almost
    exactly the color of the negative mask. If this is a development problem,
    I don't perceive the mechanism involved, at least at first glance,
    especially when the reversed color of the intruding stripe is thus
    significant.

    Maybe I should put up a picture of the negs and a crop of a scan. Hmmm..
    Something to think about: a mystery wrapped in a conundrum, sealed in
    emulsion....

    Yeah, I'll repost all of this when I've got stuff to look at on the site.

    Thanks,

    Bill Tallman
     
    William D. Tallman, Sep 26, 2003
    #5
  6. I would expect the film to be crimped and the irregularity not to be
    regular if processing were the fault -- having it at the same place on each
    frame makes me question whether it is a reel problem.
    I hate it when they're wrapped in a condum.
     
    Phil Stripling, Sep 26, 2003
    #6
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