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Thread: Development time for Acros 100 in Tmax RSm test

  1. #1

    Development time for Acros 100 in Tmax RSm test

    I am testing my film speed for Fuji Acros 100 before an overseas trip. My local dealer suggests asa 64 for this fiilm. I have exposed two sheets one at asa 64 and and another at 80 using zone I exposure on a grey card. I will develop the negatives in some fresh Tmax RS developer that I already use diluted 9 to 1, at 75 degrees for 12 minutes at asa 80, with good results, with Tmax 100 film.

    I know that we expose for the shadows and develop for the highlights, so development time isn't critical for this test, but would appreciate a suggested development time for this Acros 100 film and Tmax RS developer combination.

    If I like to Acros, which I can use in my Readyload film holder, does anyone have a different developer they can recommend? I must use 75degrees here in Arizona. I use a Jobo tank, six sheets at a time.

  2. #2

    Join Date
    Feb 2005
    Posts
    2,955

    Re: Development time for Acros 100 in Tmax RSm test

    I have not used TMax-RS developer. But my time for Acros in D76 1:1 in a Jobo 3006 is 6 min 30 seconds at 68 degrees.

  3. #3

    Join Date
    Sep 2003
    Location
    Seattle, Washington
    Posts
    3,020

    Re: Development time for Acros 100 in Tmax RSm test

    510-Pyro is a good match for Acros and rotary development. The standard dilution is 1:100, but it can be diluted further for longer times. I normally expose Acros at EI 100 and develop in 510-Pyro 1:100/ 6min/70F/rotary agitation. For your conditions, I would recommend 510-Pyro 1:150/ 7:15/74F/rotary agitation. Good luck, and enjoy your trip.

    Jay

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