QTR-Quadtone RIP

--- In QuadtoneRIP@yahoogroups.com, "David" <dkfreed@...> wrote:
" I use these in an UV 
> exposure unit to create etching plates from UV light sensitive film--
> the dots of ink block underlying areas on the plate from being 
> exposed and these develop differently than areas that are exposed to 
> the UV light. 

David, you might find some threads of interest here:

http://www.hybridphoto.com/forums/index.php

Look at the Digital Negative section under The Print.