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<blockquote data-quote="nickt" data-source="post: 647588" data-attributes="member: 4923"><p>I'm not disagreeing with lokatz, just a different technique. The main attractiveness in the bbf technique is the ability to use af-c but at any moment you can stop the autofocus and still shoot regardless of subject focus. Its like an instant access pretend af-s mode. So that is why you would want to take out of focus pictures-recomposing. If you don't have release mode set, you won't have that instant ability to recompose. Recomposing is impossible in af-c. BBF gives you af-c with the ability to quickly recompose. I think of it as manual focus with power assist. Press the button and I am instantly focused on a point I choose better and quicker than I can do by hand and eye. Let the button go and I am basically manually focused and free to recompose. Great for standing wildlife and landscape where I want to pick the exact focus point and re-frame. Great for an anticipated still subject, you know a bird will land on a certain perch, prefocus with bbf and wait. It is not great on bif. If you end up liking bbf, set one of your U1/U2 to af-c with focus priority for fast moving subjects.</p></blockquote><p></p>

[QUOTE="nickt, post: 647588, member: 4923"] I'm not disagreeing with lokatz, just a different technique. The main attractiveness in the bbf technique is the ability to use af-c but at any moment you can stop the autofocus and still shoot regardless of subject focus. Its like an instant access pretend af-s mode. So that is why you would want to take out of focus pictures-recomposing. If you don't have release mode set, you won't have that instant ability to recompose. Recomposing is impossible in af-c. BBF gives you af-c with the ability to quickly recompose. I think of it as manual focus with power assist. Press the button and I am instantly focused on a point I choose better and quicker than I can do by hand and eye. Let the button go and I am basically manually focused and free to recompose. Great for standing wildlife and landscape where I want to pick the exact focus point and re-frame. Great for an anticipated still subject, you know a bird will land on a certain perch, prefocus with bbf and wait. It is not great on bif. If you end up liking bbf, set one of your U1/U2 to af-c with focus priority for fast moving subjects. [/QUOTE]

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