dev time Tmax 100

Discussion in 'B&W: Film, Paper, Chemistry' started by veke, Oct 21, 2013.

  1. veke

    veke Member

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    TMax 100 Film and TMax developer (not RS) and I plan to make a dilution 1:7 for economical reasons instead of 1:4. The Kodak chart shows the time 9 min for 24 degrees Celsius with 1:4 dilution, nothing else. How about 22 degrees C instead of 24 C, any knowledge and experience? The 22 degrees is normal for room temperature and thus easier to keep than the 24 degrees.
     
  2. Konical

    Konical Subscriber

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    Good Morning, Veke,

    1:7 is my standard dilution for the T-100/T-Max developer combination. I use the standard 68 degrees F/20 degrees C temperature; 10 minutes is my "normal" developing time.

    Konical
     
  3. veke

    veke Member

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    Good morning to you also, Konical. I will test that immediately, perhaps 21 degrees is the case in my darkroom meaning....9 minutes. i will give a report after a couple of hours.
     
  4. wildbill

    wildbill Member

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    Ilford has a a time/temp printable table on their site.
     
  5. veke

    veke Member

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    now the quick report as I promised. Time 9 minutes seems pretty accurate, as the films are dripping wet and hanging for some hours I wouldn´t change the development time. If I would it would be an increase of say 20 seconds. So, 21 degrees C and 9 minutes is good but you may use 9 minutes 20 seconds depending on your taste. Thanks Konical, your recommendation works out beautifully, at least for my taste.
     
  6. RalphLambrecht

    RalphLambrecht Subscriber

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    how about a proper film test and getting out of trial and error?
     
  7. pbromaghin

    pbromaghin Subscriber

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    Ralph, how would you recommend such a test be structured?