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Cross processing Ektachrome, specifically 7251/7240


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#1 Greg Traw

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Posted 29 May 2007 - 02:09 AM

I'm currently working on a project where we plan on cross-processing some old Ektachrome reversal stock. I've done some research on the net, and it seems like the process either brings out cyans, yellows and greens as a group or magentas, reds and blues as a group. I was wondering if this is directly related to the E.I./tungsten or daylight being used?

Any insight would be appreciated...

Thanks,
Greg Traw
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#2 Dominic Case

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Posted 29 May 2007 - 06:30 PM

No, it's related to the fact that in cross-processing you are using a developer that was not designed for the product, and so each emulsion layer is developed to the wrong (and differently wrong) contrast, and with different inter-layer effects (cross-talk).
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#3 Greg Traw

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Posted 30 May 2007 - 01:54 AM

I realize what the process is that's not the question. What I want to know is what specific film stocks and chemical baths achieve the two color palettes mentioned in the first post (cyan, yellow, green and magenta, blue, red) as they seem to be the most dominate colors in cross-processing. Or is there any way to gauge this? Is cross-processing really a gamble? I have a feeling it isn't because the films and music videos where it has been done obviously have a large degree of consistency throughout.
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