Canon ELPH 310 HS vs Canon ELPH 520 HS vs Canon EOS 1000D vs Canon EOS 50D

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Basic Info
Price range
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Release date	Aug 23, 2011	Jan 9, 2012	Jun 10, 2008	Aug 26, 2008

Characteristics
Body type	Ultracompact	Ultracompact	Compact SLR	Mid-size SLR
Max resolution	4000 x 3000	3648 x 2736	3888 x 2592	4752 x 3168
Pixels	12 MP	10 MP	10 MP	15 MP
Sensor detectors		17	11	16
Sensor type	BSI-CMOS	BSI-CMOS	CMOS	CMOS
Processor		DIGIC 5		Digic 4
Image & lens
ISO	Auto 100, 200, 400, 800, 1600, 3200	Auto 100, 200, 400, 800, 1600, 3200	Auto, 100, 200, 400, 800, 1600	Auto, 100, 200, 400, 800, 1600, 3200 (H),6400(H1),12800(H2)
Image stabilization	Optical	Optical
Digital zoom
Manual focus	1	1
Lens mount			Canon EF/EF-S	Canon EF/EF-S
Screen type	Fixed	Fixed		Fixed
Screen size	461	461	230	920
Screen dots
Min. shutter speed	1/2000	1/4000	1/4000	1/8000
Aperture priority
Shutter priority
Other features
Built-in flash	4.00	2.50	13.00	13.00
Flash range
Continuous drive
Self-timer	Multi	Multi		Multi
Video	1920 x 1080 (24fps), 1280 x 720 (30 fps) 640 x 480 (30, 120 fps), 320 x 240 (30, 240 fps)	1920 x 1080 (24 fps), 1280 x 720 (30 fps) 640 x 480 (30, 120 fps), 320 x 240 (240 fps)
Microphone	None	Stereo
Storage	SD/SDHC/SDXC	microSD/microSDHC/microSDXC	SD/SDHC/MMC card	Compact Flash (Type I or II), UDMA
Connectivity
USB	Yes	Yes	No	Yes
HDMI
Wireless
Weight	96 x 57 x 22	87 x 54 x 19	126 x 98 x 65	146 x 108 x 74
Orientation sensor
GPS
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The comparion is limited to 4 cameras at a time.