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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,
“lm” will flash in the shutter
speed/aperture displays 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).
In continuous release mode, frame rates will
slow and while photographs are being processed, the capacity
of the memory buffer will drop.
Photographs and movies taken at high ISO sensitivities can be
processed to reduce “noise.”
Long Exposure NR (Long Exposure Noise Reduction)
G button ➜ Cphoto shooting menu
High ISO NR
G button ➜ Cphoto shooting menu/1 movie shooting menu
Option Description
High
Reduce noise (randomly-spaced bright pixels), particularly
in photographs and movies taken at high ISO sensitivities.
Choose the amount of noise reduction performed from
High, Normal, and Low.
Normal
Low
Off
Noise reduction is performed only as required and never at
an amount higher than when Low is selected.