Switch to English Language Passer en langue franšaise Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 75,210   Posts: 1,659,359   Online: 1011
      
Results 1 to 8 of 8
  1. #1

    Join Date
    Jun 2014
    Shooter
    Medium Format
    Posts
    68

    milky substance on film

    Hi,

    I've had this happen a couple of times while processing E6 film. When I hang the film to dry I see a kind of milky fog on the base, either uniform or in stains. But the thing is that when the film dries for a couple of hours (longer that it takes me to get the film dry when this doesn't happen) and the milky substance disappears. Before it dries it's kind of sticky, not much but enough so that I can't slide my finger over film. In other words there's friction. Like I said the whole thing goes away.
    I should say that the film was expired. But I've developed many rolls of expired E6 film without this happening. It doesn't seem to affect the image much once it dries, so it's not a problem, but I'd like to know what it is and what causes it. By the way, can really old film mess up your chemicals?

  2. #2

    Join Date
    Jul 2010
    Location
    Southern USA
    Shooter
    Multi Format
    Posts
    4,680
    Since this occurs on the base side of the film wipe that side only with a photo grade sponge wetted with distilled water. Do this when hanging the film up to dry. The residue is most likely from the wetting agent in the stabilizing bath.
    A rock pile ceases to be a rock pile the moment a single man contemplates it, bearing within him the image of a cathedral.

    ~Antoine de Saint-Exupery

  3. #3
    lxdude's Avatar
    Join Date
    Apr 2009
    Location
    Redlands, So. Calif.
    Shooter
    Multi Format
    Posts
    6,857
    Are you drinking milk while processing film?
    I do use a digital device in my photographic pursuits when necessary.
    When someone rags on me for using film, I use a middle digit, upraised.

  4. #4

    Join Date
    Jun 2014
    Shooter
    Medium Format
    Posts
    68
    I'm not sure if it's on the base side or not. I had one D-min frame (which I exposed on purpose to see how the base is going to behave on this expired roll) on the last roll, and it was milky, but then it cleared up. I normally leave the stab to dry without any problems. The only thing in common that I can remember that these instances have in which this happened is that I used my fingers to wipe some stab from the film. I'm not sure if this is connected with the issue or not, but normally I don't do that, I just hang it to dry and it dries quickly without any milkiness.

  5. #5

    Join Date
    Jun 2014
    Shooter
    Medium Format
    Posts
    68
    Quote Originally Posted by lxdude View Post
    Are you drinking milk while processing film?
    Beer actually, and I drink it from the processing tank between baths. No I don't.

  6. #6

    Join Date
    May 2005
    Location
    Daventry, Northamptonshire, England
    Shooter
    35mm
    Posts
    7,525
    I am sure I have read somewhere that this is perfectly normal for slide film and has nothing to do with film age or processing or even milk .

    In one of my several books I am sure there is a short explanation but it would take me some time to find the right book.

    pentaxuser

  7. #7

    Join Date
    Jun 2014
    Shooter
    Medium Format
    Posts
    68
    The milkiness (blacks are gray) is normal for the first 15 minutes of drying, but that's another milkiness. Perhaps I should have used a different word to describe this. What I'm talking about are kind of sticky stains of yellow-white material all over the film, especially visible on transparent parts of the film.

  8. #8

    Join Date
    May 2005
    Location
    Daventry, Northamptonshire, England
    Shooter
    35mm
    Posts
    7,525
    Quote Originally Posted by sodarum View Post
    The milkiness (blacks are gray) is normal for the first 15 minutes of drying, but that's another milkiness. Perhaps I should have used a different word to describe this. What I'm talking about are kind of sticky stains of yellow-white material all over the film, especially visible on transparent parts of the film.
    However these sticky yellow-white stains cease to be sticky and disappear after drying based on your original post. Have I got this right? I am not clear whether the film remains slightly affected or not. If it does remain slightly affected how does this manifest itself on the slide under a loupe and lightbox or projected onto a screen?

    It might help if you can scan a finished frame exhibiting the effect you mention once it dries

    pentaxuser



 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



Contact Us  |  Support Us!  |  Advertise  |  Site Terms  |  Archive  Ś   Search  |  Mobile Device Access  |  RSS  |  Facebook  |  Linkedin