CMYK curves
2002-10-17 by gaberegalbuto
Here's one for you piezo gurus out there... I've just started with quads, working on my epson 740 with MIS FS and the curves so graciously contributed by David Shechter. Great results, but still room for improvement. Being the technical, got to do it myself kinda guy I'm looking to creating my own curves and really nailing the 5% steps on various papers with maximum quality and minimum ink. My first question is this, why work in RGB? I understand that the epson driver is native RGB, but it seems that working CMYK curves and then converting back to RGB would allow much greater control over the inks. I created an image <http://www.regalbuto.net/cmyrgb.jpg> with areas of pure CMYK and RGB and printed it straight. In the print, R had a density of ~50%, and G & B were nearly identical at ~84% & ~85%. R,G,&B each require nearly 100% of two inks to create! When we're working with RGB curves aren't we then moving two values at the same time when it might be easier to move one? I'm going to give it a try, starting from scratch. I hope that anyone who can convince me otherwise will pull out some forgotten odorless stop bath and save me from the madness. be good! Gabriel Regalbuto