Nikon D5000 - Manual (Page 169)

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i
If On is selected, photographs taken at shutter speeds slower
than 8 s will be processed to reduce noise. The time required for
processing is roughly equal to the current shutter speed; during
processing, “
l m” will blink in the viewfinder and
photographs can not be taken. In continuous release mode,
frame rates will slow and the capacity of the memory buffer will
drop. Noise reduction will not be performed if the camera is
turned off before processing is complete.
Photographs taken at high ISO sensitivities can be processed to reduce “noise.”
Long Exp. NR G button
➜ C shooting menu
High ISO NR G button
➜ C shooting menu
Option Description
S High Noise reduction is performed at ISO sensitivities of ISO 800 and higher. While
photographs are being processed, the capacity of the memory buffer will
drop. Choose the amount of noise reduction performed from High, Normal,
and Low.
T Normal
U Low
Off
Noise reduction is only performed at sensitivities of Hi 0.3 and higher. The
amount of noise reduction is less than the amount performed when Low is
selected for High ISO NR.