> 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. > Wilber
The 17-35 2.8L predates the Canon DSLR line, therefore it cannot possibly have been designed for 1.6x sensors. I got mine (my first "L" glass) in July '97. Back then, only Kodak made digital bodies for EF mount - converted from EOS 1 - and Canon didn't play the DSLR field. The 16-35 2.8L is the successor of the 17-35 2.8L, and is generally considered and improvment over its predecessor, especially in the corners. It is my understanding the both lenses were designed for type 135 film (aka 35mm) bodies. BTW, lenses designed for APS size sensors often have a smaller image circle, and when used with 35mm full-frame bodies (film or digital) will have black (or very dark) corners and sides. This is aside from any corner sharpness issues should the lens actually cover full-frame. Lars -- .~. Lars Michael /V\ [EMAIL PROTECTED] /(_)\ http://www.larsmichael.com/ ^^ ^^ * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
