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  1. #1

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    Bleaching and redevelopment of negative

    I have seen this recommended before, and someone just suggested it in the gallery section, as a way to increase contrast. Is this really the case and if so how do you do it?
    Technological society has succeeded in multiplying the opportunities for pleasure, but it has great difficulty in generating joy. Pope Paul VI

    So, I think the "greats" were true to their visions, once their visions no longer sucked. Ralph Barker 12/2004

  2. #2
    Silverpixels5's Avatar
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    Its talked about in this thread for sure: http://www.apug.org/forums/showthrea...=thin+negative

    I'll also be trying this technique tonight on a roll of 135 film. If i'm not mistaken, you can bleach and redevelop in a staining dev in order to increase contrast via the stain. The process can be repeated to build contrast. I"ll know for sure tonight.
    RL Foley

  3. #3

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    If I already have stained negatives will it work? I reread the thread and I am not sure this was covered, if it was I am too dense to figure it out. Thanks for the thread by the way.
    Technological society has succeeded in multiplying the opportunities for pleasure, but it has great difficulty in generating joy. Pope Paul VI

    So, I think the "greats" were true to their visions, once their visions no longer sucked. Ralph Barker 12/2004

  4. #4
    Silverpixels5's Avatar
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    I havn't done it myself yet, but I would imagine that it should work if your negative is already stained since they say that you can repeat the process. Its the stain thats gaining density, not the actual silver. There are other intensification processes that will increase silver density, and I plan to try that if I don't get enough from building the stain.
    RL Foley

  5. #5

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    Mark,

    It will work with a stained negative, but you need to be careful of the B+F stain getting out of hand. If the negative is for silver printing, you probably won't have any problem, but if the neg is for an alternative process, the increased B+F may make printing times verrrrrrrry looooooong.


    ---Michael
    www.mutmansky.com
    B&W photography in Silver, Palladium, and gum bichromate.

  6. #6
    gainer's Avatar
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    Quote Originally Posted by Michael Mutmansky
    Mark,

    It will work with a stained negative, but you need to be careful of the B+F stain getting out of hand. If the negative is for silver printing, you probably won't have any problem, but if the neg is for an alternative process, the increased B+F may make printing times verrrrrrrry looooooong.


    ---Michael
    The other problem that might occur with repeated redevelopment in staining developers is stressing of the emulsion and cracks that show in prints. It will probably take more than 2 treatments, though.
    Gadget Gainer

  7. #7

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    It works easily

    It works like a charm. It is very easy to do.

  8. #8
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    Hi Mark,

    There was a really good description of this process on Barry Thornton's site - which is now expired. Was anybody out there smart enough to print it out? If you did, could you give us all a detailed descrition? It does sound like you can breath new life into thinnish negatives this way. Never tried it though.

    Murray

  9. #9

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    Quote Originally Posted by MurrayMinchin
    Hi Mark,

    There was a really good description of this process on Barry Thornton's site - which is now expired. Was anybody out there smart enough to print it out? If you did, could you give us all a detailed descrition? It does sound like you can breath new life into thinnish negatives this way. Never tried it though.

    Murray
    There was a hell of a lot of useful information on that site.
    Technological society has succeeded in multiplying the opportunities for pleasure, but it has great difficulty in generating joy. Pope Paul VI

    So, I think the "greats" were true to their visions, once their visions no longer sucked. Ralph Barker 12/2004

  10. #10

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    Quote Originally Posted by Michael Mutmansky
    Mark,

    It will work with a stained negative, but you need to be careful of the B+F stain getting out of hand. If the negative is for silver printing, you probably won't have any problem, but if the neg is for an alternative process, the increased B+F may make printing times verrrrrrrry looooooong.


    ---Michael
    That is the direction I was heading. I was hoping to punch up the contrast for POP printing. SO basically the amount od stain is increasing with each redevelopment. RIght? How does this help contrast?

    Long exposures, here in the Southwest are not really a problem. Even this winter my longest time under the sun was 12 minutes. If you folks in California would stop sending clouds this way I could print more.
    Technological society has succeeded in multiplying the opportunities for pleasure, but it has great difficulty in generating joy. Pope Paul VI

    So, I think the "greats" were true to their visions, once their visions no longer sucked. Ralph Barker 12/2004

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