I forgot to presoak c41

Discussion in 'Color: Film, Paper, and Chemistry' started by steveb533, Oct 4, 2012.

  1. steveb533

    steveb533 Member

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    That wouldn't mess up my developer for the next rolls, would it? From the dyes that come off the film..I'm using kodak portra if it makes any difference.


    Thanks

    Steve
     
  2. markbarendt

    markbarendt Subscriber

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    I "forgot" for most every roll I've done.
     
  3. polyglot

    polyglot Member

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    Your developer will look pretty ugly. It shouldn't matter unless maybe the dyes start to gum up the bottles you store the dev in.
     
  4. Bob-D659

    Bob-D659 Member

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    I started doing 3 presoaks with Portra to keep the dev looking pretty. :smile:
     
  5. BrendanCarlson

    BrendanCarlson Member

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    Seems like 3 presoaks would damage the emulsion in some way.
     
  6. tnabbott

    tnabbott Member

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    I do 4 30 sec. pre-soaks with the jobo. Works perfectly.
     
  7. BMbikerider

    BMbikerider Member

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    In all the C61 I have used in the last 20+ years I have never pre-soaked a film. My feeling is unless you are SURE you have drained out all the pre-soak water then the film inside will get slightly dilute developer. Not very dilute I will admit but the risk is there. Just think about it. When did you last hear of a mini-lab doing a pre-soak?
     
  8. markbarendt

    markbarendt Subscriber

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    The reasons I don't are, that the developer is an expendable and that the directions provided for my chemicals don't specify presoak.
     
  9. newcan1

    newcan1 Subscriber

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    I get more accurate colors when I pre-warm the tank dry, rather than pre-soaking. I don't think the official C41 developing regime calls for a presoak.
     
  10. jm94

    jm94 Member

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    I have never pre-soaked, for C41 or e6, best I do it? I read somewhere one should not presoak c41 and especially to e6, am I wrong?

    Jacob
     
  11. CatLABS

    CatLABS Subscriber

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    This comes up every now and again, i have yet to have seen any manufacturer instructions for any C-41 (or e-6 for that matter) that call for pre soaking, i know of no commercial machine that presoaks either.
    Why do people do this?

    Some years ago, someone taught me how to make perfect rice - they said: "read and follow the instructions".

    I guess thats good advice to anything in life that comes with a manual.
     
  12. Matthew Cherry

    Matthew Cherry Member

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    My Jobo manual tells me to pre-soak. So, which manual do you listen to?
     
  13. cliveh

    cliveh Subscriber

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    I also have never presoaked a film. What is the point?
     
  14. Bob-D659

    Bob-D659 Member

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    To bring the tank and reel up to 100F so as not to chill the developer.
     
  15. cliveh

    cliveh Subscriber

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    I would have thought that ingress of developer into a water soaked emulsion would be more variable in displacement terms than that of developer ingress to a dry emulsion.
     
  16. markbarendt

    markbarendt Subscriber

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    The closer I get to doing it per the instruction the better I like my developing.
     
  17. markbarendt

    markbarendt Subscriber

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    I follow Kodak's.
     
  18. CatLABS

    CatLABS Subscriber

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    The one that comes with the chemistry i use :smile:
     
  19. Jeff L

    Jeff L Subscriber

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    The Tetenal Press Kit says to pre wash. The only time I didn't pre wash I got streaking on some of my film. Don't know if it was because I didn't prewash or what? - just saying is all. I will try the same tank with a prewash next time and see. I wondered it the tank took too long to fill- about 10-15 seconds.
     
  20. polyglot

    polyglot Member

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    The Jobo and Fuji instructions say to prewash when doing rotary development because it will get the reels up to temperature and give you more even development. You can preheat dry but it would take as long as the process as a whole.

    You also don't risk getting uneven development from dribbles if you presoak.
     
  21. tnabbott

    tnabbott Member

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    I thought the Kodak guy who posts on here regularly recommends it. That (and the Jobo instructions) is what prompted me to pre-soak.