Nikon D300 User Manual page 723

Shutter-release button
and the rest of the way down to take the picture.
Either of these methods will solve the age-old autofocus
problem of having a perfectly focused background with
out-of-focus subjects caused by the center AF point
concentrating on the background between the subjects.
Many of us will use
It works particularly well for static or slowly moving subjects.
When I'm out shooting beautiful nature images or at a party
shooting pictures of my friends, I'll use
along with Single frame release mode
If I'm shooting a wedding where the bride and groom are
walking slowly up the aisle,
low speed release mode
Single-Point AF Example of Use
If a subject is not moving—like a tree or a standing
person—then
frame) will allow you to acquire focus. Once the focus is
acquired, the AF Module will lock focus on the subject and it
will not change. If the subject moves, your focus may no
longer be perfect and you'll need to recompose while
releasing and then pressing the
down.
Often, if the subject is moving very slowly or sporadically, I
won't even use
leave the camera in
button halfway to acquire focus when the subject moves and
tap it again as needed. When I'm ready, I simply press the
halfway down to get good focus
Single-point AF
(CL) seem to work well for me.
Single-point AF
CL release mode
S release
mode most of the time.
(S) almost exclusively.
Single-point AF
and S release mode (Single
Shutter-release button
(Continuous
mode. I'll tap the
723
Single-point AF
and Continuous
halfway
low) but will
Shutter-release