Nikon D7000 - Manual (Page 321)

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AF-assist illuminator does not light :
• AF-assist lamp does not light if AF-C is selected for autofocus mode ( 0 91) or if continuous-
servo autofocus is selected when the camera is in AF-A mode. Choose AF-S. If an option other
than
H (auto-area AF) is selected for AF-area mode, select center focus point (0 94, 96).
• The camera is currently in live view or a movie is being recorded.
• Off selected for Custom Setting a7 (Built-in AF-assist illuminator) (
0 210).
• Illuminator has turned off automatically. Illuminator may become hot with continued use;
wait for lamp to cool down.
Beep does not sound :
• Off is selected for Custom Setting d1 (Beep; 0 215) > Volume.
• Camera is in quiet shutter-release mode ( 0 77) or movie is being recorded (0 57).
• Focus-mode selector is set to M ( 0 99) or AF-C is selected for autofocus mode (0 91).
• Release is selected for Custom Setting a2 (AF-S priority selection; 0 208).
Smudges appear in photographs : Clean front and rear lens elements. If problem persists, perform
image sensor cleaning ( 0 284).
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 ( 0 105).
• The camera is in mode M.
• The subject is too bright or too dark.
• Active D-Lighting is in effect (
0 139).
• The photograph is a long time-exposure ( 0 73).
• 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 ( 0 237).
Bright bands appear during live view or movie recording : A 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.