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Thread: 100 ISO B&W Tested and True?

  1. #1

    Join Date
    Jan 2007
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    North Easton, MA
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    100 ISO B&W Tested and True?

    I rate Porta VC and Fuji Astia at 100. I would like to rate a B&W film at 100 also. But, I have not found an emulsion that rates at 100. I shoot TMX at 50. Has anyone done test with film and developer combinations that rates an emulsion at 100?

    Spencer Ladd

  2. #2

    Join Date
    Feb 2007
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    Van Buren, Arkansas
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    Re: 100 ISO B&W Tested and True?

    I get fine results rating Agfa APX-100 at ISO 100. I develop in Wd2d Pyro for 12 minutes. Of course this film is now getting hard to find, since manufacture has ceased.

  3. #3

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    North Easton, MA
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    Re: 100 ISO B&W Tested and True?

    I get fine results rating Agfa APX-100 at ISO 100. I develop in Wd2d Pyro for 12 minutes. Of course this film is now getting hard to find, since manufacture has ceased.

    Do you use trays, tubes or tanks?

  4. #4

    Join Date
    Feb 2005
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    2,952

    Re: 100 ISO B&W Tested and True?

    I get an EI of 125 for FP4 in XTOL 1:3.

  5. #5

    Re: 100 ISO B&W Tested and True?

    Same as Ron Marshall but I meter at 100.

  6. #6

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    Oct 2004
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    S.W. Wyoming
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    Re: 100 ISO B&W Tested and True?

    I shoot FP-4 and Plus-X at 100. PMK Pyro for the FP-4 and D-76 1:1 for the Plus-X. APX 100 at 100 in R-76 1:1. Verichrome Pan at 100 in D-76 1:1. You can pretty much rate B&W film however you want. You just have to adjust your metering and development times to make it work for you. That takes testing. Nobody's opinion will take it's place, I'm afraid.

  7. #7

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    Feb 2007
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    Re: 100 ISO B&W Tested and True?

    Quote Originally Posted by Spencer Ladd View Post
    I get fine results rating Agfa APX-100 at ISO 100. I develop in Wd2d Pyro for 12 minutes. Of course this film is now getting hard to find, since manufacture has ceased.

    Do you use trays, tubes or tanks?
    Sorry, I meant to say APX-125 rated at 100. I use stainless steel tanks, with inversion agitation by hand. Agitation is for 15 secounds out of every 30 seconds., so 15 agitate, 15 rest, repeat.

  8. #8

    Join Date
    Jan 2001
    Posts
    4,585

    Re: 100 ISO B&W Tested and True?

    Plus-X in Microdol-X.
    Wilhelm (Sarasota)

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