Hello, I'd like to take some of my 4x5's (slides, E6's, chromes, color positives, whichever you call them) and make color separation negatives from them (enlarged actually) so I can do 4 color gum printing. I have a color head on my Omega enlarger. Is that color head only useful for printing color positives using color negative film? Is it possible to make RGB (Red Green Blue) negatives with what I have? I'm thinking I could use the enlarger, yes, but I'd have to find me some RGB filters to do the separations. If making these negs is possible then this is the route I want to go down because it's a two step process (enlarge & color separate, print) to the final print rather than three steps (enlarge & color separate, reversal, print) starting with a color negative original. Please go easy on me. While I'm not known to be color blind, I am kind of color dumb.