Nikon D5100, User Manual, Page: 328 / 365

221
n
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 (
0
40): use manual focus or focus lock (
0
44, 45).
• Camera is in manual focus mode: focus manually (
0
45).
Focus does not lock when shutter-release button is pressed halfway : Use AE-L/AF-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
44).
Can not select focus point
:
•
e
( Auto-area AF ;
0
42) is selected: choose another AF-area mode.
• Press shutter-release button halfway to turn monitor off or activate exposure meters (
0
28).
Subject-tracking AF not available
: Select a non-monochrome Picture Control (
0
91).
Can not select AF-area mode : Manual focus selected (
0
39, 100).
Image size can not be changed : NEF (RAW) option selected for image quality (
0
48).
Camera is slow to record photos
: Turn long exposure noise reduction off (
0
154).
Noise (randomly-spaced bright pixels, fog, or lines) appear in photos
:
• Choose lower ISO sensitivity or turn high ISO noise reduction on (
0
154).
• Shutter speed is slower than 1 s: use long exposure noise reduction (
0
154).
No photo taken when remote control shutter-release button is pressed
:
• Replace battery in remote control (
0
207).
• Choose remote control release mode (
0
35).
• Flash is charging (
0
28).
• Time selected for Custom Setting c4 ( Remote on duration ,
0
161) has elapsed: press
camera shutter-release button halfway.
• Bright light is interfering with remote.
Beep does not sound
:
• Off is selected for Custom Setting d1 ( Beep ;
0
161).
• Camera is in quiet shutter-release mode (
0
35) or movie is being recorded (
0
107).
•
MF
or
AF-C
is selected as the focus mode or subject moves when
AF-A
is selected (
0
39).
Smudges appear in photographs : Clean front and rear lens elements. If problem persists, perform
image sensor cleaning (
0
210).
Date is not imprinted on photos
: An NEF (RAW) option is selected for image quality (
0
48).
Sound is not recorded with movies
: Microphone off is selected for Movie settings > Microphone
(
0
109).
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
170).
Menu item can not be selected
: Some options are not available in all modes.