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252 Technical Notes
Photos are out of focus:
• AF-S or AF-I lens is not attached: use AF-S or AF-I lens or focus manually.
• Camera unable to focus using autofocus: use manual focus or focus lock (0 52, 55, 57).
• Camera is in manual focus mode: focus manually (0 57).
Focus does not lock when shutter-release button is pressed halfway: Use A (L) button to lock focus
when live view is off and AF-C is selected for focus mode or when photographing moving
subjects in AF-A mode (0 55).
Can not select focus point:
• e (Auto-area AF; 0 53) is selected: choose another AF-area mode.
• Press shutter-release button halfway to start standby timer (0 23).
Can not select AF-area mode: Manual focus selected (0 51, 57).
AF-assist illuminator does not light:
• AF-assist illuminator does not light if AF-C is selected for autofocus mode (0 51) or if
continuous-servo autofocus is selected when the camera is in AF-A mode.
Choose AF-S. AF-
assist is also not available when 3D-tracking is selected for AF-area mode; if single-point or
dynamic-area AF is selected, select center focus point (0 53, 55).
• The camera is currently in live view or a movie is being recorded.
• Off is selected for Custom Setting a3 (Built-in AF-assist illuminator, 0 185).
• The AF-assist illuminator can not be used in some shooting modes (0 248).
• Illuminator has turned off automatically.
Illuminator may become hot with continued use;
wait for it to cool down.
Image size can not be changed: An NEF (RAW) option is selected for image quality (0 60).
Camera is slow to record photos:
• Depending on shooting conditions and memory card performance, access lamp may light
for up to about a minute after shooting ends in continuous release modes.
• Turn long exposure noise reduction off (0 180).
Noise (bright spots, randomly-spaced bright pixels, fog, or lines) appear in photos:
• Choose lower ISO sensitivity or turn high ISO noise reduction on (0 180).
• Shutter speed is slower than 1 s: use long exposure noise reduction (0 180).
• Turn Active D-Lighting off to avoid heightening the effects of noise (0 95).
No photo taken when remote control shutter-release button is pressed:
• Replace battery in remote control (0 237).
• Choose remote control release mode (0 70).
• Flash is charging (0 23).
• Time selected for Custom Setting c4 (Remote on duration (ML-L3), 0 187) has elapsed.
• Bright light is interfering with ML-L3 remote control.
Beep does not sound:
• Off is selected for Custom Setting d1 (Beep; 0 187).
• Camera is in quiet shutter-release mode (0 48), or movie is being recorded (0 126).
• MF or AF-C is selected as the focus mode or subject moves when AF-A is selected (0 51).
Smudges appear in photographs: Clean front and rear lens elements.
If problem persists, perform
image sensor cleaning (0 241).
Date is not imprinted on photos: An NEF (RAW) option is selected for image quality (0 60, 190).