Using past end-of-life film developer

Discussion in 'The Darkroom' started by Bernard Schulman, Apr 8, 2021.

  1. Bernard Schulman

    Bernard Schulman TPF Noob!

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    hi, I recently found a box of ID11 which I had bought back in the early 80s. I'm planning to use it diluted at 1+1 to develop a few rolls of FP4 and HP5 films. Does anybody have experience using past EOL film developers? I'm hoping for adjusted developing times, to replace ILFORD's recommendations of 11 and 12 minutes for FP4 and HP5 respectively. Thanks.


     
  2. webestang64

    webestang64 Been spending a lot of time on here!

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    I only use fresh developer so I have no idea what to tell you. I certainly would not use it on any important film but if your just screwing around I guess it would work.
     
  3. 480sparky

    480sparky Chief Free Electron Relocator Supporting Member

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    I don't think the OP is wanting to use developers that are expired. I think the question is about how to develop expired film.
     
  4. limr

    limr Moderator Staff Member Supporting Member

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    Nah, read it again. The question is about a box of developer bought in the 80s.

    I agree with @webestang64 - don't use it with anything you care about. I say go ahead and do it for the sake of scientific inquiry, though. Maybe shoot a couple of short rolls (if you roll your own - or get some cheap Lomo rolls if you don't roll your own so you don't waste your good film) and try the developer at recommended times, see how it comes out, and then slowly increase the times from there (25% more, 50% more...).
     
  5. jcdeboever

    jcdeboever TPF Supporters Supporting Member

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    You could always take a film leader and drop it in there to see how long it takes to turn black. Personally, something that old and the style of developer it is, probably is not any good.
     
  6. 480sparky

    480sparky Chief Free Electron Relocator Supporting Member

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    I just read 'box' and equated that with a box of film.
     
  7. limr

    limr Moderator Staff Member Supporting Member

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    Tsk tsk tsk ;)
     
  8. 480sparky

    480sparky Chief Free Electron Relocator Supporting Member

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    That's what I get for never ever having used powder chemicals. Mine always came in bottles.
     
  9. maris

    maris TPF Noob!

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    Old developer and old film, what to do?
    Ilford FP-4 was introduced in 1968 and was replaced by FP-4+ in 1990 so it's probably more than 30 years out of date.
    Ilford HP-5 was introduced in 1976 and replaced by HP-5+ in 1989 so again it's maybe 30 years out of date.
    If the ID-11 developer is not brown, indicating oxidation has happened, it may be still good.
    I reckon shoot these ancient films at half box speed and develop for the currently recommended times. There are no standard rules for such unlikely combinations of film and developer. Good luck.
     
  10. webestang64

    webestang64 Been spending a lot of time on here!

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    I have found that fresh Kodak X-Tol at 1:1 helps reduce the base fog of old BW films.
     
  11. limr

    limr Moderator Staff Member Supporting Member

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    The OP never said the film is expired. Just the developer.
     
  12. compur

    compur Been spending a lot of time on here!

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    When in doubt read the instructions:

    ILFORD DATA SHEET SAYS:

    "Unopened packets of PERCEPTOL, ID-11 and MICROPHEN powder stored in cool and dry conditions, 4–20ºC (44–68ºF), will keep indefinitely. Once opened prepare stock solutions immediately."

    https://www.ilfordphoto.com/amfile/file/download/file/1829/product/708/
     

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