Quote Originally Posted by Photo Engineer View Post
Portra 400 then, pushed 1 stop will give plenty of contrast, but not much latitude. In fact, you can push it 2 stops and still get usable results. I think that ISO 1600 is enough, but it will be grainy and very touchy to use.

Thanks. Should I expect the color to be corrupted by this? An even cast I can correct for, but if the color cast changes with density (as I've experienced), then I'm stuck with a Photoshop nightmare and I lose the ability to make an optical print in the future.

PE, a few years back you recommended sodium sulfite to me to LOWER contrast and saturation in either C41 or RA4, and it worked pretty well. Is there a similar magic trick to do the opposite and raise contrast chemically, without screwing up the color?