Nikon D3100 User Manual

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❚❚ Long Time-Exposures (M Mode Only)
At a shutter speed of “bulb,” the shutter remains
open while the shutter-release button is held
down.
This can be used for long time-exposure
photographs of moving lights, the stars, night
scenery, or fireworks.
A tripod or optional MC-DC2
remote cord (0 177) is recommended to prevent
blur.
1 Ready the camera.
Mount the camera on a tripod or place it on a stable, level surface. To prevent
loss of power before the exposure is complete, use a fully charged EN-EL14
battery or an optional EH-5a AC adapter and EP-5A power connector.
Note that
noise (randomly-spaced bright pixels or fog) may be present in long exposures;
before shooting, choose On for the Noise reduction option in the shooting
menu (0 134).
2 Rotate the mode dial to M.
3 Choose a shutter speed.
Rotate the command dial until “Bulb”
(A) appears in the viewfinder or
information display.
4 Open the shutter.
After focusing, press the shutter-release button all the way down. Keep the
shutter-release button pressed until the exposure is complete.
5 Close the shutter.
Take your finger off the shutter-release button.
A Self-timer Mode
In self-timer mode, a shutter speed of “Bulb” is equivalent to approximately
1
/10 s.
Length of exposure: 35 s
Aperture: f/25
Mode dial
Command dial

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