We know that while being an advanced (possibly the most advanced available) and powerful Auto-Focus system, the AF sported on the EOS 5D Mark III and EOS 1D X can be confusing and overwhelming. Even Ken Rockwell wasn’t able to cope with it . There is a comprehensive guide released by Canon (right click here and save as) and oriented to all the photographers that want to master the AF system on their 5D3 and 1DX bodies. It’s a 40 pages document, and if you are looking for something more tutorial-like, then I have a good link for you.
San Diego based wedding photographer Ed Atrero posted a detailed tutorial about how to set and use the AF system on the 5D Mark III. It covers all the essential aspects and settings, and comes with lots of screenshots to exemplify everything that’s discussed. Click here for the tutorial.
For a list of shops that have the 5D Mark III in stock click here.