Nikon Z9 Mirrorless Camera - Manual (Page 832)

832 Compatible Flash Units
1 Not available with spot metering.
2 Can be selected using the [ Flash control ] item in the camera menus.
3 Available only in i-TTL flash-control mode.
Radio-controlled Advanced Wireless Lighting —
Color Information Communication (flash) 4
Color Information Communication (LED light) —
Auto FP high-speed sync —
FV lock 4 3
Red-eye reduction —
Camera modeling illumination —
Unified flash control
4
Camera flash unit firmware update 4
Supported features