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The Low-Pass Filter
The image sensor that acts as the camera’s picture element is fitted
with a low-pass filter to prevent moiré. If you suspect that dirt or
dust on the filter is appearing in photographs, you can clean the
filter using the
Clean image sensor
option in the setup menu. The
filter can be cleaned at any time using the
Clean now
option, or
cleaning can be performed automatically when the camera is
turned on or off.
❚❚
“Clean Now”
Holding the camera base down, select
Clean
image sensor
in the setup menu, then
highlight
Clean now
and press
J
. The
camera will check the image sensor and then
begin cleaning.
1
flashes in the top
control panel and other operations can not be
performed while cleaning is in progress. Do
not remove or disconnect the power source
until cleaning ends and the setup menu is
displayed.