I have used the lens with my EOS 1D mkII and experienced similar problems. It is strange, sometimes it works fine and some other time not, nevertheless the only resolution is to remove the lens and blug it in again. The lens itself is really one of the finest Canon manufactures and the shots are brilliant...
Canon EF 70-200mm f2.8 IS and error message with 10D and 20D bodies
in Canon EOS Mount
Posted
I have used the lens with my EOS 1D mkII and experienced similar problems. It is strange, sometimes it works fine and some other time not, nevertheless the only resolution is to remove the lens and blug it in again. The lens itself is really one of the finest Canon manufactures and the shots are brilliant...
Pasi M.