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Wide-area AF assist

Gray_star

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"RE: Wide-area AF assist"

Gray_star Registered since 17th Dec 2012
Thu 27-Dec-12 01:16 AM


>This also suggests that in continuous shutter release, the
>subject might move out of focus, becasue the focus locked at
>the hal-press leading to the (sequence of ) shots (if the
>subject does that in 1/6 second, or multiples of that), and
>the images will be out of focus.

That's correct. Also, you're limited on continuous drive speed anyways, because the flash won't recharge that quickly.


>D-7000 behavior, SB-600 NOT mounted:
> ...
>(b) (expected) when in AF-C focus mode, then AF-C becomes AF-S
>or AF-A. If it becomes AF-S, then we expect that only the
>single point AF area mode is active. But if SF-C becomes
>AF-A, then we would expect that the selected AF area mode
>(such a 9-pt) would apply Right?

I'm not exactly sure what you're saying here. AF-C is always AF-C...it never changes. The camera may change AF-C to AF-S if you switch from, say, Dyanamic to Single Point AF-Area. But that's not something that happens in the middle of shooting, so it doesn't matter. Only AF-A changes in the middle of shooting, starting in AF-S and then switching to AF-C if necessary (but not when there's a flash mounted or the built-in flash is raise...at least on my D90.)

This is a hot, active topic! Wide-area AF assist [View all] , GeorgCantor Silver Member , Fri 21-Dec-12 02:07 AM
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