From: Cactus Cowboy (cactus@tritel.net)
Date: 09/08/02-08:55:07 PM Z
My experience is limited to producing in-camera CMY separations on 4x5 film.
It works great for subjects that don't move. I imagine that using a color
film original, a scanner, and Adobe Photoshop would be faster and easier.
THE GUM DICHROMATE BOOK by David Scopick and THE COLOR PRINT BOOK by Arnold
Gassan both contain instructions for making in-camera separations.
I've had good results using Cyanotype combined with Gum (yellow and magenta
layers) to make color prints.
Best regards,
Dave in Wyoming
----- Original Message -----
From: "Joe" <jtait@texas.net>
To: <alt-photo-process-l@skyway.usask.ca>
Sent: Saturday, September 07, 2002 11:01 PM
Subject: CMYK Gum Prints and Color Gamut
> I have had it drilled into my head that gum can only be partially
> controlled (after years of doing), and I don't question that in the
> least, but I was wondering for those of you who have done CMYK gums, how
> does its color gamut compare to other CMYK spaces? Do you use a gum ICC
> profile in photoshop to generate color seps (I would think most people
> use Photoshop to do this)? I know with the inumerable variables and
> gum/paper combos, hour of the day, etc. that this seems kind of silly,
> but I haven't seen ANY literature on generating color seps for gum.
>
> BTW, any suggestions on literature?
>
> Thanks.
>
> -Joe
>
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