Canon ELPH 100 HS vs Canon ELPH 310 HS vs Canon EOS 550D vs Canon EOS 5D Mark II

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Basic Info
Price range
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Release date	Feb 7, 2011	Aug 23, 2011	Feb 8, 2010	Sep 17, 2008

Characteristics
Body type	Ultracompact	Ultracompact	Compact SLR	Mid-size SLR
Max resolution	4000 x 3000	4000 x 3000	5184 x 3456	5616 x 3744
Pixels	12 MP	12 MP	18 MP	21 MP
Sensor detectors			19	22
Sensor type	BSI-CMOS	BSI-CMOS	CMOS	CMOS
Processor	DIGIC 4 with iSAPS technology		Digic 4	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, 3200, 6400, 12800 (with boost)	Auto, 100 - 6400 in 1/3 stops, plus 50, 12800, 25600 as option
Image stabilization	Optical	Optical
Digital zoom
Manual focus	3	1
Lens mount			Canon EF/EF-S	Canon EF
Screen type	Fixed	Fixed	Fixed	Fixed
Screen size	230	461	1,040,000	920
Screen dots
Min. shutter speed	1/2000	1/2000	1/4000	Yes
Aperture priority
Shutter priority
Other features
Built-in flash	3.50	4.00	13.00
Flash range
Continuous drive				Multi
Self-timer	Multi	Multi	Multi	Center-weighted
Video	1920 x 1080 (24 fps), 1280 x 720 (30 fps) 640 x 480 (30, 120 fps), 320 x 240 (30, 240 fps)	1920 x 1080 (24fps), 1280 x 720 (30 fps) 640 x 480 (30, 120 fps), 320 x 240 (30, 240 fps)	1920 x 1080 (30, 25, 24 fps), 1280 x 720 (60, 50 fps), 640 x 480 (60, 50 fps)	H.264
Microphone		None
Storage	SD/SDHC/SDXC/MMC/MMCplus/HC MMCplus	SD/SDHC/SDXC	SD/SDHC/SDXC	None
Connectivity
USB	Yes	Yes	Yes	Yes
HDMI
Wireless				Yes
Weight	93 x 56 x 20	96 x 57 x 22	129 x 98 x 62
Orientation sensor				None
GPS
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The comparion is limited to 4 cameras at a time.