Thom Hogans Nikon Camera,link.

et me reiterate why we’re testing cameras and why we’re testing them one particular way: Nikon programmed some cameras incorrectly. Thus, we want a test that checks for that single problem first and foremost, and that’s what I proposed in my original article on the problem, which I’ve updated with a couple of additional notes. We are looking for a very simple pattern: out of six shots (three live view, three phase detect), one may be very, very different than the rest. If you find that result using my test, your camera is potentially a candidate for having its internal focus sensor table reprogrammed. If you don’t find that result, then your camera likely doesn’t have that problem (it might have another problem, or it might have no problem).

1. Go to the saved AF tune setting
2. Hit live view
3. Set the aperture to you normal working aperture for that lens
4. Focus the camera using LV
5. Go out of LV
6. Check the AF indicator in the viewfinder.
7. If it shows a dot you’re good.
8. If it shows |> you’re front focused: press MENU and dial in a few points +.
9. If it shows <| you're back focused: press MENU and dial in a few points -.
10. Press OK and repeat from 6.
11. Now manually test it a bit and many dial in another extra point or two in the same direction as previously.