Over on POTN I have a similar post and others are reporting the same behavior.
Basically, it seems any wide angle lens (let\'s say under 50mm) will shift when you use the outer AF points versus the center point.
You may not notice any IQ difference with some lenses like the 24-105L due to the huge DOF, but will with faster, large aperture lenses. I did not see any IQ difference with my 24-105, but you clearly see the focus scale shift. Two others on POTN have had the same behavior now.
So I wonder if this is a wide-spread issue or just isolated. Either way, hope it can be fixed. The AF performance is stellar all around, except for wide lenses using outer AF points... Which sucks, since I love using my 35L with outer AF points. I guess I will just focus/recompose until fixed.
Apr 12, 2012 at 09:59 PM
Previous versions of Invertalon's message #10538126 « 5D3 outside AF point issue with wide lenses »