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EOS-1D Mark III autofocus analysis updated  
Friday, May 29, 2009 | by Rob Galbraith
We've come out of EOS-1D Mark III AF testing retirement just long enough to put the camera's revised AF calibration and firmware v1.2.5 through its paces, to see if Canon's changes add up to improved tracking performance.

The answer is in an update to our ongoing analysis of EOS-1D Mark III autofocus performance.

Hit the Dirt: Canon EOS-1D Mark III (firmware v1.2.5, revised AF calibration) + EF 300mm f/2.8L IS, ISO 400, 1/2000, f/2.8. Click to enlarge (Photo by Rob Galbraith/Little Guy Media)

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