Paul, great info. thanks for taking the time to share your expertise. I've already printed it out knowing I'll be referring to it many times before it sinks in. Going forward, you may hear from me again for a little clarification, but I'll try not to bother you too much. A few years ago my wife and I stopped by the co-op gallery you participate in. You weren't there, but it was great to see your work in person, really nice images and prints; quite an achievement.