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Noise (bright spots, randomly-spaced bright pixels, fog, or lines) appear in photos:
• Bright spots, randomly-spaced bright pixels, fog, and lines can be
reduced by lowering ISO sensitivity.
• Use the Long exposure NR option in the photo shooting menu to limit
the occurrence of bright spots or fog in photos taken at shutter speeds
slower than 1 s (0271).
• Fog and bright spots may indicate that the camera’s internal
temperature has become elevated due to high ambient temperatures,
long exposures, or similar causes: turn the camera off and wait for it to
cool before resuming shooting.
• At high ISO sensitivities, lines may appear in photos taken with some
optional flash units; if this occurs, choose a lower value.
• At high ISO sensitivities, including Hi BW1 or Hi BW2 and high values
selected with auto ISO sensitivity control, randomly-spaced bright
pixels can be reduced by selecting High, Normal, or Low for High ISO
NR in the photo or movie shooting menu (0 271, 275).
• At high ISO sensitivities, bright spots, randomly-spaced bright pixels,
fog, or lines may be more noticeable in long exposures, multiple
exposures, and photos taken at high ambient temperatures or with
Active D-Lighting enabled, Flat selected for Set Picture Control
(0130) or extreme values selected for Picture Control parameters
(0133).
• In % mode, randomly-spaced bright pixels, fog, or lines may be more
noticeable in pictures shot under low light.
Flicker or banding appears in live view: Choose an option for Flicker reduction
that matches the frequency of the local AC power supply (0 290).
Bright regions or bands appear in live view: A flashing sign, flash, or other light
source with brief duration was used during live view.
Sound is not recorded with movies: Microphone off is selected for
Microphone sensitivity in the movie shooting menu (0273).