Canon EOS 5D Mark III vs Canon ELPH 115 IS vs Canon EOS 1000D vs Canon EOS 550D

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Basic Info
Price range
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Release date	Mar 2, 2012	Jan 29, 2013	Jun 10, 2008	Feb 8, 2010

Characteristics
Body type	Mid-size SLR	Ultracompact	Compact SLR	Compact SLR
Max resolution	5760 x 3840	4608 x 3456	3888 x 2592	5184 x 3456
Pixels	22 MP	16 MP	10 MP	18 MP
Sensor detectors	23		11	19
Sensor type	CMOS	BSI-CMOS	CMOS	CMOS
Processor	Digic 5+	DIGIC 5		Digic 4
Image & lens
ISO	Auto, 100 - 25600 in 1/3 stops, plus 50, 51200, 102400 as option	Auto 100, 200, 400, 800, 1600, 3200	Auto, 100, 200, 400, 800, 1600	Auto, 100, 200, 400, 800, 1600, 3200, 6400, 12800 (with boost)
Image stabilization		Optical
Digital zoom
Manual focus		3
Lens mount	Canon EF		Canon EF/EF-S	Canon EF/EF-S
Screen type	Fixed	Fixed		Fixed
Screen size	1,040,000	461	230	1,040,000
Screen dots
Min. shutter speed	Yes	1/2000	1/4000	1/4000
Aperture priority
Shutter priority
Other features
Built-in flash		3.50	13.00	13.00
Flash range
Continuous drive	Multi
Self-timer	Center-weighted	Multi		Multi
Video	H.264	1920 x 1080 (24 fps), 1280 x 720 (30 fps) 640 x 480 (30, 120 fps), 320 x 240 (240 fps)		1920 x 1080 (30, 25, 24 fps), 1280 x 720 (60, 50 fps), 640 x 480 (60, 50 fps)
Microphone		Mono
Storage	None	SD/SDHC/SDXC	SD/SDHC/MMC card	SD/SDHC/SDXC
Connectivity
USB	Yes	Yes	No	Yes
HDMI
Wireless	Yes
Weight		93 x 57 x 20	126 x 98 x 65	129 x 98 x 62
Orientation sensor	Optional
GPS
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The comparion is limited to 4 cameras at a time.