Canon 6D Dominates in Low Light Focusing Test vs 5Diii vs 5Dii vs Nikon D600

I am fully with you when it comes to the importance & specially for a wedding photographer to be able to acheive focus in poor light conditions, incl the joy when you found a camera that performs. With the high ISO performance of last generation cameras the AF system is still the main performance bottleneck for many types of photography. And I think the large & sensitive & hopefully high performance 6D center AF sensor can be just fine, it is certainly better with one really good focus-point as compared to many if they are less reliable.

But you can not comment on AF system performance based only on when the beep comes ...

BR

Sebastian