Nikon D3100 User Manual

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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 60).
Can not select focus point:
• e Auto-area AF selected for AF-area mode > Viewfinder (0 58), or Face-priority AF
selected for AF-area mode > Live view/movie (0 38): choose another mode.
• Press shutter-release button halfway to turn monitor off or activate exposure meters (0 27).
Subject-tracking AF not available: Select a non-monochrome Picture Control (0 94).
Can not select AF-area mode: Manual focus selected (0 38, 55).
Image size can not be changed: Image quality set to NEF (RAW) or NEF (RAW) + JPEG fine (0 65).
Camera is slow to record photos: Turn noise reduction off (0 134).
Noise (randomly-spaced bright pixels, fog, or lines) appear in photos:
• Choose lower ISO sensitivity or turn noise reduction on (0 134).
• Shutter speed is slower than 8 s: use noise reduction (0 134).
Smudges appear in photographs: Clean front and rear lens elements.
If problem persists, perform
image sensor cleaning (0 180).
Date is not imprinted on photos: Image quality set to NEF (RAW) or NEF (RAW) + JPEG fine (0 65,
147).
Sound is not recorded with movies: Off is selected for Movie settings > Sound (0 47).
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 (0 139).
Menu item can not be selected: Some options are not available in all modes.

Nikon D3100 Specifications

General

Megapixel	14.2 MP
Camera type	SLR Camera Body
Sensor type	CMOS
Image stabilizer	No
Image sensor size	- \
Maximum image resolution	4608 x 3072 pixels
Image sensor size (W x H)	23.1 x 15.4 mm
Still image resolution(s)	-
Digital zoom	- x
Focal length range	- mm
Interface	USB
Digital SLR	Yes
Power source type	Battery
Dimensions (WxDxH)	124 x 96 x 74.5 mm
Camera shutter speed	1/4000 - 30 s
Effective sensor resolution	14800000 pixels
Auto focusing (AF) modes	Single Auto Focus
ISO sensitivity	100, 200, 400, 800, 1600, 3200, Auto
Light exposure modes	aperture priority AE, auto, manual, shutter priority AE
Flash modes	Auto, Flash off, Red-eye reduction, Slow synchronization
Internal memory	- MB
Compatible memory cards	SD, SDHC, SDXC
Motion JPEG frame rate	30 fps
Maximum video resolution	1920 x 1080 pixels
Field of view	95 %
Display diagonal	3 \
Display resolution (numeric)	230000 pixels
Magnification	0.8 x
USB version	2.0
Scene modes	Children, Close-up (macro), Portrait
Photo effects	Black&White
White balance	Auto, Manual
Self-timer delay	10 s
Product color	Black
Fastest camera shutter speed	1/4000 s
Slowest camera shutter speed	30 s

Weight and Dimensions

Depth	96 mm
Width	124 mm
Height	74.5 mm
Weight	505 g