Nikon Z fc N2016 Reference Manual page 88

The AF-assist illuminator
D
Do not obstruct the AF-assist illuminator while it is lit.
6
Smoothly press the shutter-release button the rest of the way
down to take the photograph.
The memory card access lamp
D
The memory card access lamp will light while the photograph is being
recorded. Do not remove the memory card or battery.
Taking photographs (b auto)
88