You're welcome. I'm happy to share what I know, and I've been studying photography, photographic technology and similar subject matter for 40-some years. I like it. ;-)
I have been very involved in Subminiature Photography over the past decade or so, and provided proofing services for a couple of Minox books published in the late 1990s and early 2000s. I was also involved with the start up of the Minox Historical Society. A small detail that has a bearing on the curved focal plane ideas which I forgot to mention is that field curvature often changes with lens opening too. The Minox implementation had an advantage in that the inherent deep DoF of a Minox format camera (8x11 mm film frame, 15mm "normal" lens, hyperfocal 12' for DoF from 6' to infinity @ f/ 3.5, reference print size 4x5 inch) allowed optimizing the lens for one aperture and fixing that as a constant. All Minox cameras with adjustable focusing had a 15mm f/3.5 lens which was fixed wide open, which simplified designing a curved-field imaging plane. Godfrey On Oct 20, 2006, at 2:09 PM, Jack Davis wrote: > Godfrey, your "Geekdom" is impressive and appears unlimited. :)) > Thanks, again, for your time and consideration in dealing with my > out-dated ideas. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
