Nikon D100 - Manual (Page 161)

Fine-Tuning Camera Settings
Menu Guide—Custom Settings
149
Custom Setting 4: Long Exp. NR
At shutter speeds slower than about 1 /
2
s, “noise”
in the form of randomly-spaced, brightly-colored
pixels may appear in photographs, particularly in
shadows. Custom Setting 4 can be used to re-
duce noise at slow shutter speeds.
OK
Long Exposure
Noise Reduction F4
CSM MENU
OFF
ON OFF
ON
Option Description
ON
Noise reduction takes effect at shutter
speeds of about
1 /
2
s or slower. Time re-
quired to process images more than dou-
bles. During processing,
blinks in shutter-speed and aperture dis-
plays. Next photo can be taken when
is no longer
displayed.
OFF
(default)
Noise reduction off; camera functions normally.
Playback
If photographs are played back while they are being processed to reduce noise, the
image that is displayed in the monitor may not show the effects of noise reduction.
The Memory Buffer
When noise reduction is on, the memory buffer ( 42) can store a maximum of three
images (two in RAW mode).