OK, I'll ask the obvious question and "expose" my true ignorance. Why is the incident light a "better" reading? After all, it's reflected light that going to hit the film, no matter what is hitting the subject. It's also the reflected light that hits my eye.
Always wanted to ask this question . . . Steven Desjardins Department of Chemistry Washington and Lee University Lexington, VA 24450 (540) 458-8873 FAX: (540) 458-8878 [EMAIL PROTECTED]