Long Exposure Nr; High Iso Nr; Iso Sensitivity Settings - Nikon D5200 Reference Manual

Long Exposure NR

If On is selected, photographs taken at shutter speeds slower
than 1 s will be processed to reduce noise (bright spots,
randomly-spaced bright pixels, or fog). The time required for
processing roughly doubles; during processing, "l m" will flash in the viewfinder
and pictures can not be taken (if the camera is turned off before processing is
complete, the picture will be saved but noise reduction will not be performed).

High ISO NR

Photographs taken at high ISO sensitivities can be processed to reduce "noise. "
Option
High
Reduce noise (randomly-spaced bright pixels, lines, or fog), particularly in
photographs taken at high ISO sensitivities. Choose the amount of noise reduction
Normal
performed from High, Normal, and Low.
Low
Noise reduction is only performed at ISO sensitivities of ISO 1600 and higher. The
Off amount of noise reduction is less than the amount performed when Low is selected
for High ISO NR.

ISO Sensitivity Settings

Adjust ISO sensitivity (0 49).
153
G button
G button
Description
G button
C shooting menu
C shooting menu
C shooting menu