Noise Reduction; Iso Sensitivity - Nikon D40 Guide User Manual

ISO Sensitivity
Adjust ISO sensitivity (_ 37).
Noise Reduction
Photographs taken at high sensitivities or at shutter speeds of 1 s
or slower can be processed to reduce "noise" in the form of mot
tling or randomly spaced, brightly colored pixels.
Choose from
the following options:
Option
Off
(default)
On
Description
Noise turns off reduction at ISO sensitivities of 1600 or less. Minimal noise reduction is still
performed when ISO sensitivity is set to HI 1.
Photographs taken at ISO sensitivities over ISO 800 or at shutter speeds of about 1 s or
slower are processed to reduce noise (if shutter speed is I s or slower, time need to process
photographs before they are recorded approximately doubles and capacity of memory
buffer may drop). "Job nr" is displayed at the bottom of the viewfinder during processing.
Noise reduction will not be performed if the camera is turned off before processing is com-
plete.
Frame rates will slow if On is selected in continuous shooting mode (_ 32).
MenuGuide/ShootingOptions: The ShootingMenu 73