I bought a used 70-200 2.8 IS for my 5Dll and it seemed soft so I set up and did test shots changing the micro adjust. All the difference in the world. I then went ahead and did my new 24-105 kit lens as well, again like a new camera, all the difference in the world and I had been shooting with it for several months. The micro adjust may fix you right up.
|Devil Rock (Stuttgart, Germany) by cornissimo|
from Neon Signs
|Carla... by lickity split|
from Beautiful caucasian female faces
|Lunar New Year Fireworks by Michael L NYC 99|
|Vatican Basilica by wam7|
from Street lights