Joe Tainter commented:
The default autofocus mode is multi-point, and it is a contortion to switch it to anything else (like central point, like any knowledgeable photographer would use). On the D and DS, central point can be set to be the default.
This is not exactly correct. The focus point mode switch, on the right side of the lens mount, has 3 positions: Select, Lock, and Auto. There is no default. Admittedly, selecting the focus point can be fiddly, but switching from Auto to Lock (to use your favorite focus point only (Joe's is the central one, mine is the second from the right, since it usually lines up nicely with the model's eye)) is simple, for those situations when you prefer a fixed focus point.
The AF point mode switch can be left in the Lock position all the time, if that's preferred. Hope this helps.
Pat White

