Long Exposure Nr; [Long Exposure Nr] - Nikon Z 6II Reference Manual

Long Exposure NR

Reduce "noise" (bright spots or fog) in photographs taken at
slow shutter speeds.
Option
[On]
[Off]
Long-exposure noise reduction is performed after the photo is
taken. During processing, the message, "[Performing noise
reduction]" will appear in the shooting display and "Job NR"
will flash in the control panel. Pictures cannot be taken until the
message has cleared from the display. The time required to
process photos after shooting roughly doubles.
D
Long-Exposure Noise Reduction
If the camera is turned off before processing is complete, the picture will
be saved but noise reduction will not be performed.
G button U C photo shooting menu
Reduce noise in photographs taken at shutter speeds
slower than 1 s.
Long-exposure noise reduction disabled.
Control panel
C The Photo Shooting Menu: Shooting Options
Description
Monitor
285