Noises on the camera, such as the zooming of a lens or even an IS/VR motor, are often picked up by on-camera microphones. That's the disadvantage of an on-camera microphone and isn't specific to this camera or the Nikon brand.
Noises on the camera, such as the zooming of a lens or even an IS/VR motor, are often picked up by on-camera microphones. That's the disadvantage of an on-camera microphone and isn't specific to this camera or the Nikon brand.