If you are a Canon 5D Mark III or 1D-X owner, you owe it to yourself to carefully read this guide on the AF system. It is called the AF Setting Guidebook and it will help you to understand the system so you know how to get a very high percentage of in-focus shots.
Even if you never read manuals – READ THIS DOCUMENT!!!!
I know it is written for the 1D-X, but most of the content applies to the 5D Mark III as well, so I can’t stress enough how important it is that you read this document cover to cover. You’ll be rewarded by making most of this super advanced AF system.
UPDATE: Link fixed – sorry – Canon doesn’t allow direct links to the PDF.
Here’s more great content on the Canon DLC:
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