Notes On Optional Flash Units - Nikon Z 9 Reference Manual

Notes on Optional Flash Units

Be sure also to consult documentation for the optional flash unit before
use.
•
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 documentation for the SB-80DX, SB-28DX, and SB-50DX.
•
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 equivalent.
•
At ISO sensitivities over 12800, the desired results may not be
achieved at some ranges or aperture settings.
•
In mode P, the maximum aperture (minimum f-number) is limited
according to ISO sensitivity, as shown below:
Maximum aperture (f-number) at ISO equivalent of:
100 200
4 5
* If the maximum aperture of the lens is smaller than given above, the
maximum value for aperture will be the maximum aperture of the lens.
400 800
5.6 7.1
1600 3200
8 10
Compatible Flash Units
6400 12800
11 13
835