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  1. #11
    brucemuir's Avatar
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    good to see ya Ron
    sorry guys…carry on.

    By the way, it does look like agitation but what are the specifics anyway???

    Film
    xtol (you say old…?)

  2. #12

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    Bruce,

    The XTOL is not very old, just a few months in a full container and has worked fine with other films. I suspect filling and dumping the longer tank may be to blame. Film is Delta 100.

    Tom

  3. #13
    desertrat's Avatar
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    I saw this same phenomenon in some J&C Pro 100 in 120 size that I had stored past its expiration date. I believe the film was rebranded Shanghai GP3 100. Some rolls from the same batch that had been exposed and developed before it expired also showed this, after doing some further checking, but was much less noticeable and I didn't see it at first. I only saw it after I had trouble with the last couple of rolls and went back to look harder at the earlier ones.

    I also noticed this problem recently with a batch of 10 rolls of Ultrafine Plus 100 in size 120 that I bought several months ago. As a control, I exposed and developed a roll of Plus-x that was cold stored and expired a couple of years ago. No mottling, so I don't think it was my process. I think the Chinese emulsions in 120 are susceptible to this, especially past their expiration date even if cold stored. The Ultrafine film had no expiration date, so I have no way of knowing how old it is.

    Edit: I just noticed you mentioned the negatives were Delta 100. Is the film expired, by any chance?
    Happiness is a load of bulk chemicals, a handful of recipes, a brick of film and a box of paper. - desertrat

  4. #14

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    No, film is not expired but is part of a processing backlog from last Autumn, and the film would still be in or at date now, e.g. July 2012 onwards.

    Tom

  5. #15
    Photo Engineer's Avatar
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    Tom, was the film stored in a refrigerator or freezer? If so, this might be moisture condensation.

    PE

  6. #16

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    PE,

    No, I stored the film at moderate room temperature.

    Tom

  7. #17

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    I have seen something like this before on very old film stock that had been stored in a warm(ish) damp(ish) place. Only you know what conditions it has been stored in but that is my contribution.

  8. #18
    polyglot's Avatar
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    I don't reckon it's the Xtol because the other film was fine and you didn't get dense spots from undissolved materials. And likewise the spots are not an agitation problem.

    My suspicion would be something on the film, either condensation or mould spots. The condensation could have occurred before exposure.

  9. #19

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    Further developments:

    Yesterday I processed another two rolls of Delta 100 '120' in a 2-reel stainless steel tank. One of the films was from the same day with the same subject matter as my original post and displayed the mottling, but the other film, again exposed last Autumn and with extensive sky in frame did not... - printing the 6x7 negatives onto 12"x16" paper so reasonable enlarging for checking quality control issues.

    Tom

  10. #20
    Thomas Bertilsson's Avatar
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    If it's isolated to particular rolls of a tank with multiple rolls it couldn't be the developer as it would affect all of the rolls.

    The only common denominator is that the two films that display the problem are shot on the same day and are likely from the same manufacturing batch.

    I'm inclined to believe it has to do with how those particular films were stored; if they at some point were frozen and condensation got to them somehow, as mentioned above. Is there any way of telling whether your problems can be isolated to a particular batch of film, and their storage conditions prior to you being in possession of them?
    "Often moments come looking for us". - Robert Frank

    "Make good art!" - Neil Gaiman

    "...the heart and mind are the true lens of the camera". - Yousuf Karsh

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