Ok i sent my canon 1D mark II in to canon for a back focus issue. Took a week to come back invoice said, Adjusted focus cleaned image sensor and checked all functions to good working order. Now here is the thing nothing was fixed it still has the same problem will not focus right. It is still off. Has anyone had a problem like this if so what else could it be. My lense works fine on all other bodies 70-200 L2.8

