Nikon NIKKOR Z 70-200mm f/2.8 VR S Lens - Manual (Page 184)

160 Troubleshooting
Photographs and movies do not appear to have the same exposure as the preview
shown in the display
: To preview the effects of changes to settings that
affect exposure and color, select On for Custom Setting d8 ( Apply
settings to live view ). Note that changes to Monitor brightness and
Viewfinder brightness have no effect on images recorded with the
camera.
Flicker or banding appears in movie mode : Select Flicker reduction in the
movie shooting menu and choose an option that matches the frequency
of the local AC power supply.
Bright regions or bands appear in the view through the lens : The shot is being
framed under flashing sign, flash, or other light source with brief
duration.
Smudges appear in photographs : Clean the front and rear lens elements. If the
problem persists, perform image sensor cleaning.
Shooting ends unexpectedly or does not start : Shooting may end automatically
to prevent damage to the camera’s internal circuits if the ambient
temperature is high or the camera has been used extensively for burst
shooting, movie recording, or the like. If you are unable to shoot because
the camera has overheated, wait for the internal circuits to cool and then
try again. Note that the camera may feel warm to the touch, but this does
not indicate a malfunction.
Image artifacts appear in the display during shooting : “Noise” (randomly-spaced
bright pixels, fog, or lines) and unexpected colors may appear if you
zoom in on the view through the lens. Randomly-spaced bright pixels,
fog, or bright spots may also arise as a result of increases in the
temperature of the camera’s internal circuits during shooting; turn the
camera off when it is not in use. At high ISO sensitivities, noise may
become more noticeable in long exposures or in pictures recorded when
the camera temperature is elevated. Note that the distribution of noise
in the display may differ from that in the final picture. To reduce noise,
adjust settings such as ISO sensitivity, shutter speed, or Active
D-Lighting.