Nikon D800E User Manual page 63

Choose the function assigned to the
AF-ON button on the optional
MB-D12 battery pack.
_---_i_0_ptio°n
........!_--°_ ............. ..... Description _ .....................
AF-ON Pressing the MB-D12 AF-ON button initiates autofocus.
Press the MB-D12 AF-ON button to lock flash value
FVlock (built-in flash and compatible optional flash units only,
190, 382). Press again to cancel FV lock.
Focus and exposure lock while the MB-D12 AF-ON
I_ AE/AF lock
button is pressed.
!_ AEIockonly Exposure locks while the MB-D12 AF-ON button is
)ressed.
Exposure locks when the MB-D12 AF-ONbutton is
!_ AElock(Reset pressed, and remains locked until the button is
on release) pressed a second time, the shutter is released or the
exposure meters turn off.
Exposure locks when the MB-D12 AF-ONbutton is
!_ AElock(Hold) )ressed, and remains locked until the button is
)ressed a second time or the exposure meters turn off.
!_ AFIockonly Focus locks while the MB-D12 AF-ON button is pressed.
SarneasFn The MB-D12 AF-ON button performs the function
[]
button selected for Custom Setting f4 (_ 311).
320