J. C. O'Connell wrote: > I have never used ANY wide angle lens on film (24mm equiv or wider) > On ANY film format (35mm thru 8x10) that didn't have softer corners > And edges than in the center. That is simply the nature/physics > Of optics. Even the very best W.A. optics always perform better in the > center if that is your "standard". The wider the lens (say 17 to 20mm > equiv) > The more pronounced the difference will be....I don't think this is > A "fault" of FF DSLRS whatsoever....
Especially with SLR's, where the presence of the mirror requires retrofocus lens design that prevents the "angle of light striking the sensor" to even be significantly different between normal and wide angle lenses. (And the difference between light hitting the corner of an APS-C sensor and the corner of a full-frame sensor is less than 1.5 degrees anyway.) -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
