Nikon Z9 Mirrorless Camera - Manual (Page 822)

822 Compatible Flash Units
1 Not available with spot metering.
2 Available only in i-TTL , GN , and M flash-control modes.
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
4 2
FV lock 4 3
Red-eye reduction 4
Camera modeling illumination
4
Unified flash control —
Camera flash unit firmware update 4
Supported features