I was testing my autofocus tracking on my new Mark III, and I may have a good copy.... I'm new to Canon (just sold my D2X), but so far so good 
I'm very impressed by the dynamic range of this camera. It was a sunny day and the top of the bird is very bright, but there is a lot of detail still available under. (no photoshop highlight recover here)
Feedback and comments welcome !
Ralph
![]() | HTTP response: NOT FOUND | MIME changed to 'image/gif' |

)....
