Nikon P3 - Manual (Page 89)

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Use this option to determine how the camera focuses when shooting still pic-
tures.
Auto-focus Mode Y
Z Single AF
(default setting)
Focuses only when the shutter-release button is pressed halfway.
a Full-time AF
Adjusts the focus continuously even when the shutter-release
button is not pressed halfway. Use this setting for shooting mov-
ing subjects.
AF Lock
Focus and exposure are locked when the shutter-release button is pressed halfway, and remain
locked while the shutter-release button is held in this position (AF lock). AF lock can be used to
take pictures of off-center subjects or in situations in which the camera is unable to focus using
Autofocus (P.147). Procedures for AF lock are described below. In this example, AF area mode
(P.86) is set to Center.
1 Focus.
Position the subject in the center of the frame and press the
shutter-release button halfway.
2 Check focus indicator.
When the subject is in focus, the focus indicator on the monitor
lights up. The focus area is outlined in green on the monitor.
• Focus and exposure will remain locked while the shutter-
release button is pressed halfway.
3 Recompose picture.
• Keeping the shutter-release button pressed halfway, re-
compose your picture. The distance between the camera
and your subject should not change while the focus is
locked. If your subject moves, lift your finger from the shut-
ter-release button, focus again at the new distance and
then recompose your shot.
4 Press shutter-release button the rest of the way down
to take picture.
F2.7 F2.7 1/60 1/60 120 120 F2.7 1/60 120
F2.7 F2.7 1/60 1/60 120 120 F2.7 1/60 120
For more information, see “Getting Good Results with Autofocus” (P.147).