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Noise (bright spots, randomly-spaced bright pixels, fog, or lines) appear in photos:
• Choose lower ISO sensitivity or use high ISO noise reduction (0 105, 218).
• Shutter speed is slower than 1 s: use long exposure noise reduction (0 218).
• Turn Active D-Lighting off to avoid heightening the effects of noise (0 137).
AF-assist illuminator does not light:
• AF-assist lamp does not light if AF-C is selected for autofocus mode (0 97) or if continuous-
servo autofocus is selected when the camera is in AF-A mode. Choose AF-S. If an option other
than auto-area AF is selected for AF-area mode, select center focus point (0 99, 101).
• The camera is currently in live view or a movie is being recorded.
• Off selected for Custom Setting a7 (Built-in AF-assist illuminator) (0 223).
• Illuminator has turned off automatically.
Illuminator may become hot with continued use;
wait for lamp to cool down.
Smudges appear in photographs: Clean front and rear lens elements.
If problem persists, perform
image sensor cleaning (0 301).
Sound is not recorded with movies: Microphone off is selected for Movie settings > Microphone.
The brightness of the image in the monitor differs from the exposure of photographs taken in live view:
• Center-weighted or spot metering is selected (0 109).
• The camera is in mode M.
• The subject is too bright or too dark.
• Active D-Lighting is in effect (0 137).
• The photograph is a long time-exposure (0 79).
• The flash is used (0 143).
Flicker or banding appears during live view or movie recording: Choose an option for Flicker reduction
that matches the frequency of the local AC power supply (0 252).
Bright bands appear during live view or movie recording: A flashing sign, flash, or other light source with
brief duration was used during live view or movie recording.
Menu item can not be selected: Some options are not available in all modes.