Nikon Z 50 Reference Manual page 107

D
Exposure Indicators
The exposure indicators show whether the photograph would be
under- or over-exposed at current settings. Depending on the option
chosen for Custom Setting b1 (EV steps for exposure cntrl), the
amount of under- or overexposure is shown in increments of
1 /
EV. If the limits of the exposure metering system are exceeded, the
2
displays will flash.
Monitor
Viewfinder
A
Auto ISO Sensitivity Control (Mode M)
If auto ISO sensitivity control (0 101) is enabled, ISO sensitivity will
automatically be adjusted for optimal exposure at the selected shutter
speed and aperture.
Custom Setting b1 set to "1/3 step"
Optimal exposure
Underexposed
1 /
by EV
3
/
1
or
3
Overexposed
by over 3 EV
Shooting Controls
79