If the problem is the sensor, there is not much you can do about it with lens design.
However, since SLR UWA lenses are extreme retrofocus lenses the light coming out the back side is not at the extreme angles that it is from a normal UWA. So, the argument is put forth by those who do not understand optical physics at all. Now if you are expecting the digital cartoon effect to extend evenly to the corners of the frame, you are going to be severely disappointed. Because it simply is not going to happen. -- graywolf http://www.graywolfphoto.com http://webpages.charter.net/graywolf "Idiot Proof" <==> "Expert Proof" ----------------------------------- Toralf Lund wrote: >>> I really don't get what's being said here -- old, >>> film optimized lenses perform well on the full frame >>> Canons, as evidenced by the L series? >>> >> Define "well" ;-). >> >> Even the best film-optimized Canon glass cannot take >> advantage of the full-frame sensors. In particular, >> edge performance on wide-angle lenses tends not to be >> very good. >> > Wide-angle behaviour is a well-known problem with digital sensors, or at > least an issue that needs to be carefully addressed in the lens design, > so this is probably true. It seems to me however it is not to say that > there are problems with wide angles "in particular", as this suggests > that other lenses also don't perform well. You should probably say that > there are issues with wide angles, period. > > - Toralf > > > -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
