Nikon Z8 User Manual page 910

Camera modeling illumination
Unified flash control
Camera flash unit firmware update
1 Not available with spot metering.
2 Can also be selected via the flash unit.
3 qA/A mode selection is performed on the flash unit using custom settings.
4
Choice of qA and A depends on the option selected with the master flash.
5
Available only in i‑TTL, qA, A, GN, and M flash-control modes.
6 Available only in i‑TTL flash control mode or when the flash is configured to emit monitor
preflashes in qA or A flash control mode.
7 Firmware updates for the SB‑910 and SB‑900 can be performed from the camera.
Supported features
836
4
—
7
4
Compatible Flash Units