Nikon D3100 User Manual

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ISO Sensitivity
“ISO sensitivity” is the digital equivalent of film speed. Choose from settings that
range from a value roughly equivalent to ISO 100 to one roughly equivalent to ISO
3200 in steps equivalent to 1 EV.
For special situations, ISO sensitivity can be raised
above ISO 3200 by about 1 EV (Hi 1, equivalent to ISO 6400) or 2 EV (Hi 2, equivalent
to ISO 12800).
Auto and scene modes also offer an AUTO option, which allows the
camera to set ISO sensitivity automatically in response to lighting conditions; AUTO is
selected automatically in i and j modes.
The higher the ISO sensitivity, the less
light needed to make an exposure, allowing higher shutter speeds or smaller
apertures.
1 Place the cursor in the information display.
If shooting information is not displayed in the monitor, press the P button.
Press the P button again to place the cursor in the information display.
2 Display ISO sensitivity options.
Highlight the current ISO sensitivity in the
information display and press J.
3 Choose an ISO sensitivity.
Highlight an option and press J. To return to
shooting mode, press the shutter-release button
halfway.
Information display P button

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