Re: Dissolving Konica IR

[siteseer <siteseer@xxxxxxxxxxxxxx>]

At 10:40 PM 2/27/00 +0100, Eckhard Stephan <eckhard.stephan@xxxxxxxxxxx> wrote:
>seems like I got a strange problem with Konica IR: This evening, I
>developed two Konica films (D-76 stock, Tetenal stop bath, Tetenal
>Superfix, a combination I often used succesfully before). During the
>final washing I had to realize that on both films the gelatine on the
>back side was virtually dissolving. 

>At first, I thought that something was wrong with
>my chemicals. I had however used the same solutions before with a roll
>of HIE, which was absolutely okay. After I encountered the problems with
>Konica IR, I used the chemicals in question once more for a roll of TMAX
>400 (maybe somewhat risky). Everything worked just fine...  But somehow,
>there MUST be a lesson to be learned... The only possible reason I can
>think about now was that maybe the water went too warm, while I was
>washing the Konica films ? Any suggestions will be greatly appreciated,

        I reticulated (cracked the emulsion) on Tri-X 120 roll film by
washing it in water that was a bit warmer than that used in developing it.
I was tired of freezing my hands in the cold tap water, so I figured, since
the development stage was over, what's the harm in making the water a little
warmer?  Well, the emulsion was so cooked that, like with your Konica, it
was dissolving and would come off of the film at the touch.  I hung it to
dry anyway, and when it did, it was hazy looking, and when printed, it had
small dots all over it.  Nice effect for the images I was shooting, so it
was an accidental plus for me, but it sounds like you did the same thing.
So if you want to get straight film, keep the water temperature constant all
the way through, but if you want to crack the emulsion, warm it up in final
rinse.  Interesting, an IR film that can be reticulated - something new to
try...



					http://www.jorsm.net/~siteseer

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