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Thread: What is your personal ISO speed for Fp4+?

  1. #1

    Join Date
    Apr 2001
    Posts
    108

    What is your personal ISO speed for Fp4+?

    So, what is your personal ISO speed for FP4+?

  2. #2

    Join Date
    Nov 1999
    Posts
    740

    What is your personal ISO speed for Fp4+?

    Andy, I usually rate it at 80 ASA, but it also fairs very well as low as 50 ASA. I get good results using either Dixactol or FX39 as the developer. Regards Pa

  3. #3

    Join Date
    Dec 2000
    Location
    Tonopah, Nevada, USA
    Posts
    6,338

    What is your personal ISO speed for Fp4+?

    125 ABC+ Pyro

  4. #4

    What is your personal ISO speed for Fp4+?

    Andy:

    Chris Johnson's book on the zone system provides a series of tables for different film/developer combinations. His tables show both 80 and 125 depending on the developer used:

    Edwal FG-7: ISO 125 D-76 (1:1): ISO 125 Ilford ID11: ISO 80 HC 110: ISO 80 T-Max RS: ISO 80 Agfa Rodinal: ISO 125 Ilford Perceptol: ISO 80

    FP4+ is not my regular film and I've never done any systematic testing with it. I usually use it indoors with photofloods and an old 5x7 Kodak 2D. Under these conditions, I tend to rate FP4+ at or around ISO 50. Most films are rated lower for tungsten and, frankly, 50 is easier to read on my Pentax spot meter! I normally develop in d-76.

    ..............................

  5. #5

    What is your personal ISO speed for Fp4+?

    I rate it at 100 for both PMK and Xtol 1+3

  6. #6

    What is your personal ISO speed for Fp4+?

    100 with Diafine

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