Nick


Mine is set at Plus 4 on my cameras so I know the lens is off. Once I set the adjustment it is dead on. But, you would think any one that would buy a $4500 lens would also know that they could do a micro adjustment if there camera allows.


I would be careful you wouldn't know what it cost to repair until Canon gives you an estimate, or at the very least see if you could take it and use it for a day or two to see how it performed on your camera.


You could invest in a Canon Pro Service membership if you qualify and at least know your getting a discount going in. If your a new gold member I think they let you send it two items for cleaning and check out for free.


Rick