D800 + Sigma 150mm OS: AF problem

Started Dec 6, 2012 | Discussions thread
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SK81
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D800 + Sigma 150mm OS: AF problem
Dec 6, 2012

Hi,

I've just received a new Sigma 150mm OS macro for my D800. Sharpness - perfect, bokeh - perfect. But AF is worse than bad. If I half-press shutter, lens keeps hunting and never focuses. But if I press shutter just a little bit and for a very short period of time then lens focuses correctly (after 1-5 trials). At long distances, AF performance is somewhat better. I have Sigma 26-60mm, this lens does not do such things... No problems with MF.

Does anyone have any similar issues with Sigma 150mm or any other lens? I am thinking of sending the lens back...

Thanks,

SK

Nikon D800
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