Per RobGalbraith.com:
Starting on February 1, 2008, Canon USA began informing key photographers and key organizations using the EOS-1D Mark III that engineers at Canon in Japan have developed a new fix for the camera’s autofocus, a fix that’s in addition to the change in the sub-mirror mechanism and firmware updates introduced in 2007. (Continue reading. . .)
Here’s Photography Bay’s original post for some background on the EOS-1D Mark III AF issue. If you’ve got some time to kill, there’s a ton of information on the issue at RobGalbraith.com.
[tags]canon, 1d, mark iii, af, problem[/tags]