Nikon D500 User Manual page 326

e2 Flash shutter speed
1/60 s
1/30 s
1/15 s
1/8 s
1/4 s
1/2 s
1 s
2 s
4 s
8 s
15 s
30 s
e3 Exposure comp. for flash
Entire frame
Background only
e4 Auto M ISO sensitivity control
Subject and background
Subject only
e5 Modeling flash
On
Off
300
Choose the slowest shutter available
when the flash is used in modes P and A.
Choose how the camera adjusts flash
level when exposure compensation is
used.
(defaults to Subject and background)
Choose whether auto ISO sensitivity
control for flash photography is
adjusted to correctly expose both the
subject and background or the main
subject only.
Choose whether optional CLS-
compatible flash units (0 326) emit a
modeling flash when the camera
Pv button is pressed during viewfinder
photography.
(defaults to 1/60 s)
(defaults to Entire frame)
(defaults to On)