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| p.1 #14 · Advice please: How to shoot wide open (at f1.2 or 1.4)? |
Spot focus on the eye. Avoid focus and recompose, ai servo, etc. like the plague.
Choose the point of focus well -- even eyebrows, etc. can throw it off.
In many cases I have been able to get perfect focus with zone focus on the face, but I can't speak for that with those lenses as I don't have them. The closest thing I have is the 135 f/2 and I haven't used that on the 5d3 yet. For that I used an aftermarket focus screen (5d2) and I haven't found one of those for the 5d3, not yet at least.
People talk about bracketing focus, what I do is focus once (back button focus) and then move my head back and forward slightly. There might be other ways to do this, for instance can you link different microadjustments to the C1, C2, C3 modes and then cycle through those while shooting? Not sure, never tried that.
Hopefully the ML hack for the 5d3 will support focus peaking as well as an auto-bracket mode when it comes out.