Nikon D5 User Manual page 368

4
Press J.
The message shown at right will be
displayed in the monitor and a row of
dashes will appear in the top control
panel and viewfinder. 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. The display in the viewfinder and
rear control panel will turn off and the row of dashes in the top
control panel will flash.
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.
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