Nikon Z 5 Reference Manual page 708

D
Foreign Matter on the Image Sensor
Foreign matter entering the camera when lenses or body caps are
removed or exchanged (or in rare circumstances lubricant or fine particles
from the camera itself) may adhere to the image sensor, where it may
appear in photographs taken under certain conditions. To prevent entry
of foreign matter when attaching the body cap or exchanging lenses,
avoid dusty environments and be sure to remove all dust and other
foreign matter that may be adhering to the camera mount, lens mount, or
body cap. To protect the camera when no lens is in place, be sure to
replace the supplied body cap. Should you encounter foreign matter that
cannot be removed using the image sensor cleaning option ( 0 663),
clean the image sensor as described in "Manual Cleaning" ( 0 665), or
have the sensor cleaned by authorized Nikon service personnel.
Photographs affected by the presence of foreign matter on the sensor can
be retouched using the clean image options available in some imaging
applications.
D
Servicing the Camera and Accessories
The camera is a precision device and requires regular servicing; Nikon
recommends that the camera be inspected once every one to two years,
and that it be serviced once every three to five years (note that fees apply
to these services).
•
Frequent inspection and servicing are particularly recommended if the
camera is used professionally.
•
Any accessories regularly used with the camera, such as lenses or
optional flash units, should be included when the camera is inspected
or serviced.
Caring for the Camera
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