Kodak D-9 in lith printing

Discussion in 'Kodak' started by pslaviero, Nov 19, 2006.

  1. pslaviero

    pslaviero Guest

    After having purchased Tim Rudman's lith printing book now the matter
    is to find lith developers. I wuold like to try with Kodak D-9, because
    it is made with easy to find components. I'm looking for someboby
    helping me in the use of this bath, I have Ilford RC MG paper. What
    diluition could be a good start point? On unblinkingeye.com site they
    suggest for paper from 4 to 10 times more than for film, but I have no
    idea on film's diluition.
    Thansk all
    P.
     
    pslaviero, Nov 19, 2006
    #1
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  2. pslaviero

    dan.c.quinn Guest

    How about Ansco 81? The formula is at the site you mentioned.
    With out knowing I compounded a lith developer of similar formula
    but without the citric acid or bromide. Depending upon the paper
    bromide may or may not be necessary. Likely the citric acid is
    for improved longevity. I use my concoction one-shot so
    longevity was of less an issue.
    If interested I'll check my notes and again that Ansco 81
    formula then suggest some dilutions. Dan
     
    dan.c.quinn, Nov 19, 2006
    #2
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  3. You might want to join the Alternative Processes list and
    ask there. Tim Rudman is a member and will answer questions.
    My understanding is that the developer must be of the
    type which produces "infectious development", those are
    usually the ones with formaldehyde or paraformaldehyde
    (formaldehyde in powder form). I don't think developers
    without it will produce the effect you want. Someone on the
    Alt Processes list will know, there are several
    practitioners there.
    Also, check Tim's book to see if he has an e-mail address
    there. If so don't be afraid of writing him and asking.




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    Richard Knoppow, Nov 29, 2006
    #3
  4. pslaviero

    darkroommike Guest

    D-9 is high contrast but I don't think it's a "lith" developer, you can
    but try it and see.
    darkroommike
     
    darkroommike, Nov 30, 2006
    #4
  5. pslaviero

    dan.c.quinn Guest

    For our purposes infectious development is obtained with
    hydroquinone in an at least moderately alkaline environment
    containing little sulfite. Hydroquinone, sodium carbonate, and
    a little sulfite are the only chemicals needed.
    The formulas mentioned this thread and Wall's Normal
    Hydroquinone are a few examples. There are others including
    my own by chance lith developer.
    The ph of the developer must be high enough to activate
    the hydroquione. I've done that with a 50 - 50 blend of sodium
    carbonate and the bicarbonate. So, by no means is their a need
    for highly caustic chemistry. Dan
     
    dan.c.quinn, Nov 30, 2006
    #5
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