Hello Robert, Thank you for your comments. I appreciate them very much. I will be shooting a horse, in the high desert (contrast is a problem because of bright sun, dark shadows and reflection from sand, etc.) Formats will be 35 mm and medium format. The finished products will be for illustrations for a book. I was thinking of trying the Portra black and white because I like the Portra color film so much. I don't quite trust the black and white films that are processed in C-41, though. They seem to lose too much contrast. I was wondering if the Portra was any better than the XP2. I've ordered some Portra black and white to try it. I still have time. I't's always nice to hear the thoughts about products from those who have tried them, though. I think I'll stick to good old Tri-X for the shoot, though. If you have further comments or suggestons, I'd love to hear them. Marilyn