AThe BButtons

For the purpose of focusing the camera, pressing either of the Bbuttons has the same effect as pressing the shutter-release button halfway.

APredictive Focus Tracking
Bbutton

N

Bbutton for vertical shooting

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 either of the Bbuttons 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. 305). For information on using release priority in single-servo AF, see Custom Setting a2 ([AF-S priority selection], pg. 306). For information on preventing the camera from focusing when the shutter-release button is pressed halfway, see Custom Setting a5 ([AF activation], pg. 309).

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