Nikon D1X - Manual (Page 84)

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Focus mode Description
C
Continuous-servo AF
(release priority)
The camera adjusts focus continuously while the shutter-release
button is pressed halfway, automatically tracking moving subjects
(focus tracking). The shutter can be released at any time, whether
or not the camera is in focus (release priority). Focus is not locked
when the in-focus indicator (●) is displayed.
S
Single-ser vo AF
(focus priority)
If the subject is stationary, the camera focuses when the shutter-
release button is pressed halfway. Focus remains locked while the
shutter-release button is held in this position (focus lock). The
shutter can only be released when the in-focus indicator (●) is
displayed (focus priority).
AD
V
ANCED PHO
T
OGRAPHY—A
UT
OFOCUS