Nikon D330018-55VR User Manual (en)

320 Technical Notes
Foreign Matter on the Image Sensor
Nikon takes every possible precaution to prevent foreign matter from 
coming into contact with the image sensor during production and 
shipping. The D3300, however, is designed to be used with 
interchangeable lenses, and foreign matter may enter the camera 
when lenses are removed or exchanged. Once inside the camera, this 
foreign matter may adhere to the image sensor, where it may appear in 
photographs taken under certain conditions. To protect the camera 
when no lens is in place, be sure to replace the body cap provided with 
the camera, being careful to first remove all dust and other foreign 
matter that may be adhering to the body cap. Avoid exchanging 
lenses in dusty environments.
Should foreign matter find its way onto the image sensor, clean the 
sensor as described above, 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 Capture NX 2 
(available separately; 
0 307) or the clean image options available in 
some third-party imaging applications.
Servicing the Camera and Accessories
The camera is a precision device and requires regular servicing. Nikon 
recommends that the camera be inspected by the original retailer or 
Nikon-authorized service representative 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