E6 development troubleshouting

Discussion in 'Film and Processing' started by gurney_tim, Sep 5, 2006.

  1. I found this web site that gives illustrated examples of mistakes/problems that
    can be encountered.

    http://www.molecularexpressions.com/primer/photomicrography/chromeprocerrors.html

    This may help some of us..

    Tim
     
  2. It would be more useful if the test object included a grey card or a skin tone. Also,
    it helps if you know that some aspects of E6 processing are more important than others.
    FD controls speed, pH of col dev colour balance. If you have problems with ageing or weak
    reversal expect a green col balance. Excess base density usually beach and fix - but can
    be dead conditioner.
    And with any attempt to control E6 - very difficult w/o proper control strips and densitometry
     
  3. It would be more useful if the test object included a grey card or a skin tone. Also,
    it helps if you know that some aspects of E6 processing are more important than others.
    FD controls speed, pH of col dev colour balance. If you have problems with ageing or weak
    reversal expect a green col balance. Excess base density usually beach and fix - but can
    be dead conditioner.
    And with any attempt to control E6 - very difficult w/o proper control strips and densitometry
     
  4. Fuji used to do an excellent process manual that had every combination of problems you
    could imagine with photographs and plots for both theirs and Kodak control strips.
    I wish I still had it!

    looking at the page most of it is correct except he missed out the crucial wash between
    first dev and reversal, if this is missed out reversal bath will be contaminated (by Tin I
    think) changing both density and or colour.

    E-6 is one of the harder processes to keep in line for a Prolab, FD Specific gravity and CD
    ph (NaOH add if too low) are crucial.
    Mark
     
  5. You can get the Kodak Z-119 manual set from my Home Page, then scroll down.
     

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