M (Manual) - Nikon Z fc N2016 Reference Manual

Video mode exposure settings
A
The following video settings can be adjusted during recording:
Mode
P, S
1
A
M
1 Exposure control in shooting mode S is the same as in mode P.
2 The upper limit for ISO sensitivity can be selected using the [ISO
sensitivity settings] > [Maximum sensitivity] item in the video
recording menu.
3 If [On] is selected for [ISO sensitivity settings] > [Auto ISO control
(mode M)] in the video recording menu, the upper limit for ISO sensitivity
can be selected using [Maximum sensitivity].

M (manual)

･ You control both shutter speed and aperture. Choose this mode for
long time-exposures of such subjects as fireworks or the night sky
("Bulb" or "Time" photography, 0134).
･ Shutter speed (w) and aperture (e) can be adjusted with reference
to the exposure indicators (q).
❚ ❚
Shutter speed
･ Rotate the shutter-speed dial to set the shutter speed.
The mode selector
Aperture
—
4
4
Speed
—
—
4
131
ISO sensitivity
—
2
—
2
3
4