Ahhhhh I get it. I always wondered why RGB was such a horrible system. It did not completely seem to work. I suppose cymk is better though. BUT what posessed people to think of that model! Wait a sec. So if I had a pic. with a said RGB value 12,13,14 and a darkness of say 15 then according to the model I can fkeep the RGB values tha same and just change the darkness. Fine but can't I do that in any other photo program just by adjusting the darkness. I'm not trying to poke holes I'm just trying to clarify. Seriously I would love to hear about that lab. Sounds like we will need new softwere(sp) though. Can this be applied to say psp? Oh and welcome to the forum. Bsteph