You might want to check again on this one. Contax introduced AF in 2001.L lenses come with the following "unique and extraordinary"
features that, the last time I checked, the Germans do not provide.
1. autofocus
Actually they had the first working AF cameras 20 years earlier, they were shown to journalists but never released because it was thought AF's low accuracy would damage their company's reputation. Only after technology had advanced far enough did they come up with what's probably the best AF system around.
The question is what good the 50/1.2 is supposed to be with anything but an 1D with its advanced AF. When the FD 1.0 and 1.2s were out, the corresponding manual focus cameras had viewfinders that were up to a full 20% larger than the 5D's, and in spite of the larger size, even a bit brighter with their fully reflective mirror. AF eats a 2/3 stop of VF brightness.[/U]