285Technical Notes
Noise (bright spots, randomly-spaced bright pixels, fog, or lines) appears in photos:
• Bright spots, randomly-spaced bright pixels, fog, and lines can be
reduced by lowering ISO sensitivity.
• Use the Noise reduction option in the shooting menu to limit the
occurrence of bright spots or fog in photos taken at shutter speeds
slower than 1 s (0 195).
• 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 high values selected with auto ISO
sensitivity control, randomly-spaced bright pixels can be reduced by
turning Noise reduction on (0 195).
• At high ISO sensitivities, bright spots, randomly-spaced bright pixels,
fog, or lines may be more noticeable in long exposures, and photos
taken at high ambient temperatures or with Active D-Lighting enabled,
Flat selected for Set Picture Control (0 132) or extreme values
selected for Picture Control parameters (0 135).
• In % mode, randomly-spaced bright pixels, fog, or lines may be more
noticeable in pictures shot under low light.
No photo taken when remote control shutter-release button is pressed:
• Replace battery in remote control (0 269).
• Choose remote control release mode (0 95).
• Flash is charging (0 38).
• Time selected for Remote on duration (ML-L3) (0 208) has elapsed.
• Bright light is interfering with ML-L3 remote control.
Beep does not sound:
• Off is selected for Beep (0 213).
• Camera is in quiet shutter-release mode (0 65), or movie is being
recorded (0 138).
• MF or AF-C is selected as the focus mode or subject moves when AF-A is
selected (0 69).
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