63
N
AThe B Button
For the purpose of focusing the camera, pressing
the B button has the same effect as pressing
the shutter-release button halfway.
APredictive Focus Tracking
In continuous-servo AF, 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.
ASee Also
For information on using focus priority in continuous-servo AF, see
Custom Setting a1 ([AF-C priority selection], pg. 267).
For information on
using release priority in single-servo AF, see Custom Setting a2 ([AF-S
priority selection], pg. 268).
For information on preventing the camera
from focusing when the shutter-release button is pressed halfway, see
Custom Setting a5 ([AF activation], pg. 271).
B button