Nikon D800 - Manual (Page 116)

En_03
92
N
Autofocus mode can
be selected by
pressing the AF-mode
button and rotating
the main command
dial until the desired
setting is displayed in
the viewfinder and
control panel.
A
The B Button
For the purpose of focusing the camera,
pressing the
B button has the same effect
as pressing the shutter-release button
halfway.
A
Predictive Focus Tracking
In AF-C mode, the camera will initiate
predictive focus tracking if the subject moves
toward or away from the camera while the
shutter-release button is pressed halfway or the
B button is pressed.
This allows the camera to track focus while attempting to predict where
the subject will be when the shutter is released.
A
See Also
For information on using focus priority in continuous-servo AF, see
Custom Setting a1 (AF-C priority selection,
0 281). For information
on using release priority in single-servo AF, see Custom Setting a2 (AF-S
priority selection,
0 282). For information on preventing the camera
from focusing when the shutter-release button is pressed halfway, see
Custom Setting a4 (AF activation,
0 283). See page 48 for information
on the autofocus options available in live view or during movie
recording.
AF-mode button Main command dial
Control panel Viewfinder
B button