High ISO performance is nothing without low light autofocus performance

Started Dec 19, 2012 | Discussions thread
Charles Currey
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Re: High ISO performance is nothing without low light autofocus performance
In reply to primeshooter, Dec 19, 2012

I shoot my D3s regularly at ISO 6400 and above. I find that I have a much greater autofocus success  rate when I use only a single focus point. Each of the other two focus modes surrenders some or all of the focusing decision making to the camera. If you use ViewNX2 it shows the focus point on each shot, if there was one and you will be able to tell if your pictures are out of focus because the camera has selected a focus point that you did not intend or if the camera simply did not focus when the shot was taken. It is also helpful, I find, if you use the central focus point. I don't know why this but for me it has over many thousands a of shots been shown to be true. I hope this helps. Experiment a bit to see if these thoughts work for you. I doubt that your D800 is a worse at autofocus than my D3s. I suspect they are pretty much equivalent.

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Chuck Currey

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