Nikon Z 6II Reference Manual page 740

D
Metering Areas for FV Lock
The areas metered when FV lock is used with optional flash units are as
follows:
Picture taken with
Stand-alone flash unit
Remote flash units
controlled via
Advanced Wireless
Lighting
D
Notes on Optional Flash Units
•
Refer to the flash unit manual for detailed instructions.
•
If the unit supports CLS, refer to the section on CLS-compatible digital
SLR cameras. This camera is not included in the "digital SLR" category in
the SB-80DX, SB-28DX, and SB-50DX manuals.
•
If the flash-ready indicator ( c ) flashes for about three seconds after a
photograph is taken in i-TTL or non-TTL auto mode, the flash has fired at
full power and the photograph may be underexposed (CLS-compatible
flash units only).
•
i-TTL flash control can be used at ISO sensitivities between 64 and 12800
(Z 7II) or between 100 and 12800 (Z 6II).
•
At ISO sensitivities over 12800, the desired results may not be achieved
at some ranges or aperture settings.
Compatible Flash Units
698
Flash control mode
i-TTL
Auto aperture ( q A)
i-TTL
Auto aperture ( q A)
Non-TTL auto (A)
Metered area
6-mm circle in center of
frame
Area metered by flash
exposure meter
Entire frame
Area metered by flash
exposure meter