Back focus or motion blur.

Started Dec 25, 2013 | Discussions thread
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Re: Back focus or motion blur.
In reply to Full Frame, Dec 26, 2013

Full Frame wrote:

Thanks, just thought that it being an advanced camera you could use single point in that situation. Will go back to AF-C at 4fps.

You need to study up on the difference between AF-S and AF-C. Single point area mode is available in both AF-S and AF-C. The difference between the two is what happens to focus when the subject moves.

Once AF-S acquires focus it will not change. It is intended for stationary subjects. AF-C will continuously adjust as the subject under the focus point moves. It is intended for moving subjects.

It looks like your camera focused on the wall behind. Once focus was achieved, that's where it stayed.

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