Nikon D3100 Reference Manual

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Image overlay combines two existing NEF (RAW) photographs to create a single
picture that is saved separately from the originals; the results, which make use of RAW
data from the camera image sensor, are noticeably better than overlays created in an
imaging application.
The new picture is saved at current image quality and size
settings; before creating an overlay, set image quality and size (0 64, 66; all options
are available).
To create an NEF (RAW) copy, choose an image quality of NEF (RAW).
1 Select Image overlay.
Highlight Image overlay in the retouch menu
and press 2.
The dialog shown at right will be
displayed, with Image 1 highlighted.
2 Display NEF (RAW) images.
Press J to display a picture selection dialog
listing only NEF (RAW) images created with this
camera.
3 Highlight a photograph.
Use the multi selector to highlight the first
photograph in the overlay.
To view the
highlighted photograph full frame, press and
hold the X button.
4 Select the highlighted photograph.
Press J to select the highlighted photograph
and return to the preview display.
The selected
image will appear as Image 1.
Image Overlay
G button ➜ N retouch menu
+

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