D800 Firmware Update Focus Improvement!

Started Apr 2, 2013 | Discussions thread
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Daniel Lauring
Daniel Lauring Veteran Member • Posts: 9,256
Re: 2 examples - Maybe the light isn't the issue alone?

m_appeal wrote:

I suppose it's not the best target for AF to work... but it seems to be the same problem as with the portrait shots - the camera just picks whatever contrasty area it wants as opposed to the point  selected.

There was a least one, very long thread on this.  Unless you pick single point focus the camera will focus on the highest contrast point close to the focus point you picked, as opposed to the actual focus box you picked.  It is designed to increase focus speed at the cost of accuracy.  You can bypass this by going with the single center point focus.

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