Nikon Z 7II User Manual page 238

D
Auto ISO Sensitivity Control
•
If value currently selected for [ISO sensitivity settings] is higher than
that chosen for [Maximum sensitivity], the value chosen for [ISO
sensitivity settings] will serve as the upper limit for auto ISO sensitivity
control.
•
During flash photography, shutter speed is limited to the range defined
by the values selected for Custom Settings e1 [Flash sync speed] and
e2 [Flash shutter speed].
The S Button
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