70-200mm F2.8L II are there problems

[Sinh Nhut Nguyen]

I do not have the time right now to throughly check a new lens out and make sure it is a good copy.

You should spend some time and check it out thoroughly. 99% of the time it is user error or people pixel peep at 100% crop at 1 foot away from the monitor.

[Derek Reese]

I sold my mk I and bought the mk II from Amazon a month ago. While the lens wasn