Nikon D850 Menu Manual page 224

❚❚ Quick Wireless Control (SB-5000 Only)
Select this option to control overall flash compensation for, and
the relative balance between, groups A and B, while setting
output for group C manually.
1
C: Select Quick wireless control for
Flash control > Remote flash
control in the photo shooting menu.
2
C: Select Quick wireless control
options.
Highlight Quick wireless control
options in the flash control display
and press 2.
3
C: Adjust flash settings.
Choose the balance between groups
A and B.
Adjust flash compensation for groups
A and B.
224 Optional Flash Units