hello from ny, thank you for your quick reply. we are trying to emulate the look of early-20th century Photochrom Liths for a title sequence that won't require too much work in post. I was suggested by a (still) photographer that in their experience (especially when in weak cu chloride solutions) he got something that was quite similar to the samples I showed him. The effect was somewhat similar to the look we're shooting for. I'm beginning to suspect it may just be a bypass-effect due to the weak solution nothing more, Does this sound right? Or does a cu bleach have a specific color shift?
-thanks
yuri