I've recently moved to large format, and have access to a full color darkroom. I have been investigating the possibility of using a pin registration carrier to make and use masks to get repeatable results, but I'm unsure what masking techniques I can reasonably use for color printing. I could just scan and do it in photoshop, but I'd like to avoid it if I can. What I'm interested in/looking at is this: http://www.radekaphotography.com/maskingkits.htm A book comes with it, that would presumably tell me everything I need to know, but I'd like to know before I shell out $400 I'm concerned that these things won't work for color because there is no more pan masking film. Can anyone help save me from photoshop?