Adjusting Auto Focus: Nikon

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.

Nikon: Focus & Meter Interlocution

Spot metering is locked to the AF point (it will try and put whatever is under the AF point at middle grey without regard for the rest of the scene)

Centre weighted is completely uncoupled from the AF point, will meter from the centre of the viewfinder (you can set how big an area it assesses, or you can have it average out the entire scene)

Matrix is biased towards the AF point but takes the rest into account.