U of S | Mailing List Archive | alt-photo-process-l | RE: separations for gum printing

RE: separations for gum printing

Hi Marek,

The difference is deeper / more drastic with uncurved negatives (since the
curve darkens the thin parts of the negative).

I'm not criticizing anything in your new / different workflow. I just
don't see the same thing as you do, when I do it myself, and wonder why?

Thanks for sharing,

22 Kasım 2008, Cumartesi, 5:46 pm tarihinde, Marek Matusz yazmış:
> Loris,
> A better example would be an uncurved set of negatives. Since you have
> applied a curve that was devised to your specific workflow, you have
> distorted the comparison to some extent. While in general I think it is
> true then when looking at a number of side by side separations I can see a
> little bit less of a very deep shadow separation. My practice is to let
> them fall where they are. I was actually after something else, that is my
> impression that CMY negatives have more of a binary color combinations. I
> was frequently doing that by adjusting color saturation, or even
> selectively adjusting saturation with masks. There was an adjustment in
> Photoshop to make pictures look more like Velvia slides that I used as
> well.
> For example if you look at a blue sky, it has very little yellow component
> in the CMY color space as compared to RGB color space. A standard color
> chart would be the best comparison. I am not saying that one or the other
> way ia a better way to make negatives. I am just experimenting and trying
> to see if anybody else can add from personal experience.