You've reinvented a feature of F-calc ;-)) http://tangentsoft.net/fcalc/
Shel > [Original Message] > From: Roman > http://roman.blakout.net/?dof > ^^^A friend of mine complained that he can't get proper DoF on closeups > with wide-open 50mm f/1.8 lense on Nikon DSLR, while it was okay over > film SLR. I suggested DoF was simply very shallow and just to illustrate > created DoF calculator on my website. I like to use it for hyperfocal > and DoF calculations. It requires JavaScript browser... -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net