Yes, Lee, studio is a different ballgame, and you can stack more gels. I cut my teeth as an assistant in a studio that shot big rig trucks on location for the manufacturers. Those guys would stack all kinds of filters, and the shots were gorgeous and perfect. They had to be. I think that you can get away with quite a bit as long as you don't shoot in a high flare situation. I can't afford gels any more, and I'll never wear the glass out.