« on: January 17, 2014, 09:11:18 AM »
... unless you're shooting faster lenses than f2.8 because for these it's got only non-cross precision, alas, "best" is a term to be better avoided when comparing tech items that perform very differently in different situations.
Where does it say that? Seems to me that the center point is cross-type from f/1.0 to f/5.6.
From the 6D manual:
Maximum lens aperture: f/3.2 - f/5.6
Cross-type focusing (vertical and horizontal lines detected simultaneously) is possible with the center AF point. The other AF points are either vertical- or horizontal-line sensitive.
Maximum lens aperture: f/1.0 - f/2.8
Besides cross-type focusing (vertical and horizontal lines detected simultaneously), the center AF point can also perform high-precision, vertical-line sensitive AF. The other AF points are either vertical- or horizontal-line sensitive.