Announcement regarding AF tracking performance of the EOS-1D Mk IV
As a result of further enhancement, Canon is working to release a firmware update for the EOS-1D Mark IV. This firmware update further enhances the AF tracking performance and is scheduled to be available for download from the Web starting from late January.

We will update this announcement on once this firmware update is ready for download.

Details of the enhancement:
Firmware Version 1.0.6 enhances the AF tracking performance of the EOS-1D Mark IV for receding subjects and for subjects that are approaching at a low speed.



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  1. When It comes to auto-focus, just find out which brand Sports Illustrated photographers are using (the majority)…then you’ll find out which camera has the best autofocus. I do tend to see more and more Nikons out there but Canon has the majority for now. We’ll see in the future if Canon can keep it.

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