Nikon D3100 User Manual

62
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Manual Focus
Manual focus can be used when you are not using an AF-S or AF-I lens or when
autofocus does not produce the desired results (0 56).
1 Set the lens focus-mode switch.
If the lens is equipped with an A-M or M/A-M switch,
slide the switch to M.
2 Focus.
To focus manually, adjust the lens focus ring until the
image displayed on the clear matte field in the viewfinder
is in focus.
Photographs can be taken at any time, even
when the image is not in focus.
A Selecting Manual Focus with the Camera
Manual focus can also be selected by setting the camera focus mode
to MF (manual focus; 0 55).
Focus can then be adjusted manually,
regardless of the mode selected with the lens.
A-M switch
M/A-M
switch

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