delta 400@400, rodinal 1+50

Discussion in 'B&W: Film, Paper, Chemistry' started by pierods, Feb 25, 2009.

  1. pierods

    pierods Member

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    Hi,

    for delta 400 shot at 400, rodinal 1+50, the massive chart gives 20 minutes, the film developing cookbook gives 16.5 minutes.

    Which one?
     
  2. Lee L

    Lee L Member

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    Agfa says Delta 400, 20C, 1:50, 18 minutes at EI 250 for a gamma of 0.65. They also say:

    If you want to get closer to EI400 and keep the contrast down, you could try agitation only every 3rd to 5th minute, while prolonging the development time by 25%-50%. That gives extra time for the shadows to develop (higher effective film speed), and less agitation keeps the highlights from building too much density.

    Either way, you'll need to test for your own circumstances.

    Lee

    "There ain't no sanity clause." - Chico Marx
     
    Last edited by a moderator: Feb 26, 2009
  3. OP
    OP
    pierods

    pierods Member

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    Thanks. I'll report on the results.
     
  4. pcooklin

    pcooklin Member

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    I like 1:100 18 mins personally.