Nikon Z9 Mirrorless Camera - Manual (Page 835)

835 Compatible Flash Units
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:
* 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.
Maximum aperture (f-number) at ISO equivalent of:
100 200 400 800 1600 3200 6400 12800
4 5 5.6 7.1 8 10 11 13