Well, there's the math. Further my own experience says no. This does not mean that I'm opposed to any mathematical argument that demonstrates otherwise. Such an argument will make me reexamine my tests. Probably a good thing. Nevertheless, until I see a mathematical demonstration contrary to what I've been shown (mathematically), I remain unconvinced and happy with what I observe. Keep in mind that my Minox shooting with approximately the same field of view and the same f-stop as my 35 mm and printed to the same size shows far greater DOF than the 35. It's the other side of the same coin. Regards, Bob... From: <PhotoRoy6@aol.com> > In a message dated 9/8/02 1:45:24 PM EST, Bob@Blakely.com writes: > > > ow, you may be tempted to say that this is only apparent because the 100mm > > photo must be blown up by a factor of three to provide the same cropped > > scene. Consider that 0.285 x 3 = .755, not 2.659. > > My Physics Professor in college actually did this with actual photographs and > concluded that the DOF was the same as long as picture is shot from the same > spot at the same f/ and the pictures are enlarged to same magnification.(i.e. > 100mm blow up 3x of 300mm)
