Nikon D200 D200 User's Manual - Page 62

AF-S Mode Priority

Page 62 highlights

Reference-Focus The AF-ON Button For the purpose of focusing the camera, pressing the AFON button has the same effect as pressing the shutter-release button halfway. Predictive Focus Tracking In continuous-servo AF, the camera will automatically initiate predictive focus tracking if the subject moves while the shutter-release button is pressed halfway or the AF-ON button is pressed. In predictive focus tracking, the camera will track focus while attempting to predict where the subject will be when the shutter is released. a1-AF-C Mode Priority ( 148) If Focus is selected for Custom Setting a1 (AF-C Mode Priority), photographs can be taken in continuous servo-AF only when the camera is in focus. Note that regardless of the setting selected, focus will not lock when the in-focus indicator is displayed. a2-AF-S Mode Priority ( 148) If Release is selected for Custom Setting a2 (AF-S Mode Priority), photographs can be taken in single servo-AF even when the camera is not in focus. Note that regardless of the setting selected, focus will lock when the in-focus indicator is displayed. a5-Lock-On ( 150) This option controls whether the camera immediately adjusts focus to track a subject when the distance to the subject changes drastically. a6-AF Activation ( 151) If AF-ON Only is selected for Custom Setting a6 (AF Activation), the camera will only focus when the AF-ON button is pressed, not when the shutter-release button is pressed 52 halfway.

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52
Reference—Focus
The AF-ON Button
For the purpose of focusing the camera, pressing the
AF-
ON
button has the same effect as pressing the shutter-re-
lease button halfway.
Predictive Focus Tracking
In continuous-servo AF, the camera will automatically initiate predictive focus tracking if
the subject moves while the shutter-release button is pressed halfway or the
AF-ON
but-
ton is pressed.
In predictive focus tracking, the camera will track focus while attempting
to predict where the subject will be when the shutter is released.
a1—AF-C Mode Priority (
148)
If
Focus
is selected for Custom Setting a1 (
AF-C Mode Priority
), photographs can be
taken in continuous servo-AF only when the camera is in focus.
Note that regardless of the
setting selected, focus will not lock when the in-focus indicator is displayed.
a2—AF-S Mode Priority (
148)
If
Release
is selected for Custom Setting a2 (
AF-S Mode Priority
), photographs can be
taken in single servo-AF even when the camera is not in focus.
Note that regardless of the
setting selected, focus will lock when the in-focus indicator is displayed.
a5—Lock-On (
150)
This option controls whether the camera immediately adjusts focus to track a subject when
the distance to the subject changes drastically.
a6—AF Activation (
151)
If
AF-ON Only
is selected for Custom Setting a6 (
AF Activation
), the camera will only
focus when the
AF-ON
button is pressed, not when the shutter-release button is pressed
halfway.