Nikon D780 DSLR Camera (Body Only) - Manual (Page 694)

648 Menu Guide > A Custom Settings
F [ AF lock only ] Focus locks while the control is pressed.
E [ AE lock (Hold) ]
Exposure locks when the control is pressed.
Exposure lock does not end when the shutter is
released. Exposure remains locked until the
control is pressed a second time or the standby
timer expires.
C [ AE lock only ] Exposure locks while the control is pressed.
B [ AE/AF lock ]
Focus and exposure lock while the control is
pressed.
C [ Take photos ]
Press the shutter-release button all the way
down to take a photograph with an aspect ratio
of 16:9.
Option Description