Nikon D800 User Manual (en)

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

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

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

For information on using focus priority in continuous-servo AF, see 
Custom Setting a1 (AF-C priority selection, 

 

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.

B button