Good afternoon,
I am testing a Canon 600mm L II from CPS and wanted to know from the group if you feel that this lens should focus faster than the 800mm. I've used it in a few scenarios where the subjects are about 25 to 50 yards away as well as closer than 10 feet away. I don't really notice a significant focusing speed difference. All subjects have been birds in flight or stationary.
Thanks in advanced for any feedback you may have.

