Over on the Flickr forums I've posted about some of the autofocusing issues I've had with my Canon 7D. This has definitely been the most challenging camera I've owned. To sum up the link above, my 7D had back-focusing/front-focusing issues and I ultimately sent it in to Canon repair twice. In that time I became extremely frustrated to the point where I considered seriously switching to Nikon and at the very least just get rid of the 7D. (My other camera is the 5D Mark II.) What made it even more frustrating was how great the 7D feels to hold, unlike previous Canon dSLRs, so to handle such a great ergonomic camera yet get crap photos was maddening. Having to ship it to Canon twice and wait two weeks for it to ship, get repaired and then wait for it to get mailed back was also maddening. That was from February to early April, and finally Canon seemed to get it right.
