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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.
Long exposure noise reduction is not available
during movie recording.
Photographs taken at high ISO sensitivities can be processed to reduce “noise.”
Long Exposure NR
(Long Exposure Noise Reduction)
G button ➜ C shooting menu
High ISO NR
G button ➜ C shooting menu
Option Description
High
Reduce noise (randomly-spaced bright pixels, lines, or fog), particularly in
photographs taken at high ISO sensitivities.
Choose the amount of noise reduction
performed from High, Normal, and Low.
Normal
Low
Off
Noise reduction is only performed at ISO sensitivities of ISO 1250 and higher.
The
amount of noise reduction is less than the amount performed when Low is selected
for High ISO NR.