In a message dated 4/9/2004 12:44:46 PM Pacific Standard Time, [EMAIL PROTECTED] writes: An even simpler formula is use the DOF preview on the camera and look through the viewfinder. When in doubt, stop down a stop or two. My desire is to make pictures, not get involved with mathematics.
Bill ------ Agreed. I've been waiting for a math update for my brain. But one has never arrived, so I guess I am stuck with the original defective and buggy wetware I was born with. Marnie aka Doe I don't know, the DOF preview actually doesn't do much for me. I really, really wanted it when I didn't have it, but now I hardly ever find myself using it. OTOH, maybe I am not really seeing what it's supposedly telling me. I'll try it again.

