Nikon Z8 User Manual page 512

ISO Sensitivity Settings
Adjust ISO sensitivity settings for photographs.
Option
Choose from settings of ISO 64 to 25600; the camera also supports settings
[ISO
below ISO 64 by about 0.3, 0.7, and 1 EV (ISO 32 equivalent) and above ISO
sensitivity]
25600 by about 0.3, 0.7, 1, and 2 EV (ISO 102400 equivalent).
Select [ON] to enable auto ISO sensitivity control. If [OFF] is selected, [ISO
[Auto ISO
sensitivity] will remain fixed at the value selected by the user. [Maximum
sensitivity
sensitivity], [Maximum sensitivity with c], and [Minimum shutter speed]
control]
options are available when [ON] is selected.
[Maximum
Choose an upper limit for ISO sensitivity to prevent it being raised too high.
sensitivity]
[Maximum
Choose the upper ISO sensitivity limit for photos taken using an optional flash
sensitivity
unit.
with c]
Choose the shutter speed below which auto ISO sensitivity control will kick in
to prevent underexposure in modes P and A; options range from ¹⁄₁₆,₀₀₀ to 30 s.
If [Auto] is selected, the camera will choose the minimum shutter speed based
on lens focal length. For example, the camera will automatically choose faster
minimum shutter speeds to prevent blur caused by camera shake when a long
[Minimum lens is attached.
shutter speed] To view auto shutter-speed selection options, highlight [Auto] and press 2.
Auto shutter-speed selection can be fine-tuned by choosing faster or slower
minimums. Faster settings can be used to reduce blur when photographing
fast-moving subjects.
Shutter speeds may drop below the selected minimum if optimal exposure
cannot be achieved at the ISO sensitivity chosen for [Maximum sensitivity].
G button U C photo shooting menu
Description
438
ISO Sensitivity Settings