Quote (kratos @ Oct 9 2010 03:54pm)
Umm.. I have a MK II and it's auto focus is faster than the 70-200 f/4 USM, the 28-135 USM, and a few other USM lenses from Canon.. How can you say it's slow?
Also, manual focus can be faster than any AF.
I have the mark II and have had the 70-200 f4L. The 70-200 simply blows the 50/1.8 out of the water in af speed and accuracy. In low light the nifty fifty just doesn't work at all when in af.
Now that I have the 135L, everything else just seems too darn on slow. >_<