"I too noticed, that a little while ago, there was a posting (Paul
Stenquist??) saying something about the DOF on a digital camera being
different from that of the same lens, used on a 35mm body...??? I believe what he meant was, that a 300mm on the *ist D will equal a 450mm in terms of magnification on a 35mm, but still have the DOF of a 300mm, which - I believe - is true."
Too confuse you further, Albano:
It is my understanding that when you go to an APS-sized sensor, the appropriate circle of confusion decreases, giving less depth of field. For example, fCalc uses a CoC of .025 for 35 mm., but .0199 for APS. This yields lower dof.
The bottom line is, I believe, that a 50 mm lens on the *ist D or DS will give less depth of field than the same lens on a 35 mm. camera.
Joe
