Aha! That's why no one answered me. No one knows. . . I had actually figured out the basic idea but I'm glad to see the original post. It's a really good idea, BTW. In all honesty, I would like to learn more about PS at this point in my "photo career" than I would basic shooting techniques.
Steven Desjardins Department of Chemistry Washington and Lee University Lexington, VA 24450 (540) 458-8873 FAX: (540) 458-8878 [EMAIL PROTECTED]