Archived posting to the Leica Users Group, 2001/02/08
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]> Austin, I have tried to follow most of this discussion since > your post > claiming to have thousands of shots taken with a 75mm/f1.4 at > around 3 feet > subject distance and have consistently achieved a DOF of > about 1 - 1.5 inches > on your prints. I think you have subsequently explained to > all of us how you > are able to make that claim, and I for one will let it go. To > you, it is your > truth and you are entitled to it I would hardly call it 'my truth'. I believe I know why though, as opposed to Jim's DOF of only 1/4". It has to do with that I typically shoot at 800 and use D-76 1:1, so I get quite a bit of grain. The 'focus' plateau is widened because of the coarser grain, which is in line with my explanation of how this all works. I would believe that Jim's shot that has a DOF of 1/4" was shot with a fine grained film. > P.S. My leica 35mm at f16 is marked for a DOF from Infinity > to 4', and so is > my Canon 35mmFD, my Pentax M42 SMC 35, and my Olympus 35mm, > so I think they > are pretty well standardized. Someone better tell Zeiss then ;-)