Nikon Z9 Mirrorless Camera - Manual (Page 639)

639 A Custom Settings: Fine-Tuning Camera Settings
Choose the slowest shutter speed available with a flash in mode P or A .
Regardless of the setting chosen for Custom Setting e2 [ Flash shutter
speed ], shutter speeds can be as slow as 30 s in modes S and M or at
flash settings of slow sync, slow rear-curtain sync, or red-eye reduction
with slow sync.
Choose how the camera adjusts flash level when exposure
compensation is used.
e2: Flash Shutter Speed
G button
U A Custom Settings menu
e3: Exposure Comp. for Flash
G button
U A Custom Settings menu
Option Description
Y E [ Entire frame ]
The camera adjusts both the flash level and
exposure. This changes the exposure for the entire
frame.
E
[ Background
only ]
Exposure compensation is adjusted for the
background only.