--- Wilber <[EMAIL PROTECTED]> wrote:
> Bob, the only this that I know is that we shoot with > he 16-35 "L" f / 2.8 > and I was told this and the 17-35 were both designed > for the 1.6x sensors. > So when we shoot with this on the full frame cameras > the edge distortion is > unreal- very very bad- sharp but bad. Not true at all. The 17-35 was designed long before digital SLRs were a significant issue. The 16-35 was designed for 1.6x crop sensors only in the sense that the slight extra coverage at the wide end was Canon's first attempt to accomodate the loss of wide angle coverage. The problem with these lenses on full frame digitals, if anything, has to do with the fact that they were NOT designed for digital cameras. Both lenses perform admirably at the corners on FILM. It's only on digital that edge performance becomes a problem, and that has to do with physics. Film is far more forgiving of light hitting at a very shallow angle than are digital sensors. The individual elements on a CCD or CMOS sensor are happiest when light hits them from directly in front. It's this issue that causes most of the problems with FF sensors and wide angle lenses, not any lack of concern about edge performance. Bob Meyer I don't suffer from insanity... I enjoy every minute of it. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
