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  1. #11

    Join Date
    Jan 2004
    Posts
    601
    Quote Originally Posted by titrisol
    I believe Kodak HCA does this as well. If you prefer to buy something pre-packed of course.
    Kodak HCA works just as well.
    www.jandcphoto.com

  2. #12

    Join Date
    Jun 2005
    Shooter
    4x5 Format
    Posts
    523

    Efke 25 brownish stain: dichroic fog. Also pink tint

    This may be dichoric fog. Try using acetic acid stop bath. While still wet the dichoric redeposit of silver can be wiped off with cotton but this can damage the image.

    The pink is residual sensitizing dye. I doubt if it is antihalation dye. Anti-halation under coats and back coats ususally aren't trying to capture red light. The dye may go into solution during development and imbibe into the antihalation layer of the film. This shows poor film design but it can happen. Changing the water in the prebath frequently can reduce this. Senstizing dye is also released when the unexposed AgX is fixed. this can aslo imbibe in other gel layers.

    Washing can help but it is difficult to get it out once is gets in the swollen gel. Diffusion is slow.

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