Tricolor Gum Bichromate materials - query

Virginia Boehm (gini@ix.netcom.com)
Sat, 25 Feb 1995 13:23:14 -0800

The film suggested for making color separation negatives for tri-color
gum printing, Kodak Super XX is no longer manufacturered. I've been
using orthochomatic graphic arts film which requires that yellow and
magenta filtered negatives be sandwitched to simulate red filtration
(since the ortho film does not *see* red). This works, but it makes
an already complex problem of registration even more so. Does
anybody know of a panchromatic sheet film that comes in various sizes
(including 11x14), that's not too fast and that doesn't cost big
bucks? Any help would be appreciated.

Thanks,
Gini