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Thread: Zone System

  1. #1

    Zone System

    What degree of Zone system expansion and contraction can I expect with T-Max 100 ASA and 400 ASA and T-Max RS developer ? I am about to embark on a testing jour ney and thought it wise to inquire to those who have experience on this subject.

    Also, has anyone experiemented with diluted T Max RS developer ?

    Are there other film and developer combinations that you have enjoyed as it rela tes to Zone system applications ?

    Thanks in advance.

  2. #2

    Zone System

    As far as I'm concerned T-MAX 100 film developed with T-MAX RS can handle from N+3 to N-3. In my case N+2 and +3 makes rather dense negatives. But contrast expansion is easily obtained.

    When contrast reduction is needed, I use diluted (1:15) T-MAX RS from concentrate, not from the stock, at 75 degree for 9-12 minutes development.

    For N, N+1 and N-1, I use 1:9 developer. To cut developing time, I use 1:7 developer for N+2 and +3.

  3. #3

    Join Date
    Sep 1998
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    Zone System

    As far as the dilution of T Max RS, I once read an interview article with John Sexton and he said that he uses TMax 100 rated at 80 & Tmax rated at 250 developed with Tmax RS with a 1:9 dilution developed for 11 minutes. I tried it and have been very pleased with the results. I have talked with Kodak and was advised to use Rapid Fixer because the Tmax films exhaust fixer rapidly. They also advised 30 sec agitation intervals. I fix with rapid fix for 8 minutes. If the film is not fixed properly it will have a magenta cast to it. I would advise asking Kodak to send you the technical specs on Tmax. It is loaded with info not normally spoken.

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