I have 2 D800s and unfortunately they only work in studio....

I have 2 D800 bodys my self and I have experience same behavior with both of my D800. I did have the left Af issue on one body and I have send it in to Nikon back in october to NY location and they just made it worst. Before the the left af  was off not the left is ok but center is way off it needs like +30 adjustment which I don't have I will be sending it in again soon. I have shot with both wedding past year with mixed results I had to shoot like 6-8 frame of same pose to make sure I have a good one I have to say the af hit rate with my D800 is like 30% and I shoot lot on tripod which didn't help ether so I lend up buying D3x at the end of the wedding season and now I have like 99.9 pictures perfect in focus so this proofs that that D800 has some serious af issues, which never was the case with any of my nikon and I have had lots of them in the past, D1, D1H, D1X, D2X, D3, D700, D300, D3S and now D3X. I blame Nikon MArketing department for it because they push then to make hi resolution camera for $3000 but if they pushed for $4000 then it would have great Af but the budget didn't allowed it so we have like D3000 Af sensor in it and this is why this is landscape tripod camera only when you shoot af via live view.

I will try to get it fixed and sell one body and wait for D4X.

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Derek Katana