Nikon D780 DSLR Camera (Body Only) - Manual (Page 611)

565 Menu Guide > C The Photo Shooting Menu
Wireless Flash Options
Adjust settings for simultaneous wireless control of multiple
remote flash units. This item is available only when an SB-5000
or SB-500 flash unit or a WR-R10 wireless remote controller is
mounted on the camera.
Option Description
Y [ Optical AWL ]
The remote flash units are controlled using
low-intensity flashes emitted by the master
flash (
0 494).
Y / Z
[ Optical/
radio AWL ]
Choose this option when using both optically-
and radio-controlled flash units (
0 506).
Z [ Radio AWL ]
The remote flash units are controlled by radio
signals from a WR-R10 attached to the camera
(
0 479).
[ Off ] Remote flash photography disabled.