We just remodeled our darkroom and purchased a new exposure unit which
is an Amergraph Advantage 150. I have experimented this summer by making
the negatives for photopolymer plates using photoshop and Xante
(printmaking mylar) which we use to make screenprinting positives.
However, when I use this same process, I lose some detail as I wash
out the plate. Upon further research, I discovered that there is not
enough density in the toner to create a good negative, and that it
would be wise to purchase a Linotronic machine. Is there a way to
create good quality negatives for photopolymer plates by using a
computer or do you really need a Linotronic for best results?