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  1. #1

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    Anyone tried isopropyl alcohol on color negative?

    Hi,

    I have 10 rolls of 120 portra and I need them to dry quick. Anyone tried isopropyl alcohol as a final rinse on color negatives? Is it for B&W only?

    I have 91% isopropyl alcohol. Should I mix it with distilled water 50:50? or dip it in alcohol only? Should I add some photoflo?

    Thanks!

  2. #2
    MattKing's Avatar
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    When you process colour C41 film you must use as a final rinse something that prevents bacterial deterioration. Do not use alcohol, because it may interfere with that protection.
    Matt

    “Photography is a complex and fluid medium, and its many factors are not applied in simple sequence. Rather, the process may be likened to the art of the juggler in keeping many balls in the air at one time!”

    Ansel Adams, from the introduction to The Negative - The New Ansel Adams Photography Series / Book 2

  3. #3
    clayne's Avatar
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    Only going to take 4 hours to dry.
    Stop worrying about grain, resolution, sharpness, and everything else that doesn't have a damn thing to do with substance.

    http://www.flickr.com/kediwah

  4. #4

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    Quote Originally Posted by MattKing View Post
    When you process colour C41 film you must use as a final rinse something that prevents bacterial deterioration. Do not use alcohol, because it may interfere with that protection.
    I got it. Thanks,

    Quote Originally Posted by clayne View Post
    Only going to take 4 hours to dry.

    I know that.

  5. #5

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    I have used straight methylated spirit when I needed some negs to dry immediately. It worked fine but I later rewashed and stabilised.

  6. #6
    clayne's Avatar
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    BTW guys, based on the fact that the emulsion is hygroscopic - rinsing in isopropanol or petroleum spirits is not going to magically remove all moisture from the film instantly. The surface may look dry - but the film is far from dry.
    Stop worrying about grain, resolution, sharpness, and everything else that doesn't have a damn thing to do with substance.

    http://www.flickr.com/kediwah



 

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