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❚❚Manual Cleaning
If foreign matter can not be removed from the low-pass filter using the Clean image
sensor option in the setup menu (0 170), the filter can be cleaned manually as
described below.
Note, however, that the filter is extremely delicate and easily
damaged.
Nikon recommends that the filter be cleaned only by Nikon-authorized
service personnel.
1 Charge the battery or connect an AC adapter.
A reliable power source is required when inspecting or cleaning the low-pass
filter.
Turn the camera off and insert a fully-charged EN-EL9a battery or connect
an optional EP-5 power connector and EH-5a AC adapter.
2 Remove the lens.
Turn the camera off and remove the lens.
3 Select Mirror lock-up.
Turn the camera on and press the G
button to display the menus.
Highlight
Mirror lock-up in the setup menu and press
2 (note that this option is not available at
battery levels of H or below).
4 Press J.
The message shown at right will be displayed in the
monitor.
To restore normal operation without inspecting
the low-pass filter, turn the camera off.
5 Raise the mirror.
Press the shutter-release button all the way down.
The
mirror will be raised and the shutter curtain will open,
revealing the low-pass filter.
6 Examine the low-pass filter.
Holding the camera so that light falls on the low-pass filter,
examine the filter for dust or lint.
If no foreign objects are
present, proceed to Step 8.
G button