Noise Reduction Settings - Canon EOS 90D Advanced User's Manual

Noise Reduction Settings

Long Exposure Noise Reduction
For images exposed for 1 sec. or longer, noise (dots of light and banding)
typical of long exposures can be reduced.
 [AUTO] Auto
For exposures of 1 sec. or longer, noise reduction is performed
automatically if noise typical of long exposures is detected. This [Auto]
setting is eff ective enough in most cases.
 [ON] Enable
Noise reduction is performed for all exposures of 1 sec. or longer. The
[Enable] setting may reduce noise that cannot be detected with the [Auto]
setting.
With [Auto] or [Enable] set, the noise reduction process after the picture is
o
taken may take the same amount of time as that for the exposure.
Images may look grainier with the [Enable] setting than with the [Disable] or
o
[Auto] setting.
With [Enable] set, noise reduction processing (indicated by "buSY" display)
o
when you shoot long exposures during Live View display will pause Live View
display, and you cannot shoot again until processing is fi nished.
238
1
Select [z: Long exp. noise
reduction].
2
Set a reduction option.
M