Canon EOS 5D Mark III vs Canon EOS 1100D vs Canon EOS 50D vs Canon EOS 550D

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Basic Info
Price range
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Release date	Mar 2, 2012	Feb 7, 2011	Aug 26, 2008	Feb 8, 2010

Characteristics
Body type	Mid-size SLR	Compact SLR	Mid-size SLR	Compact SLR
Max resolution	5760 x 3840	4272 x 2848	4752 x 3168	5184 x 3456
Pixels	22 MP	12 MP	15 MP	18 MP
Sensor detectors	23	13	16	19
Sensor type	CMOS	CMOS	CMOS	CMOS
Processor	Digic 5+	Digic 4	Digic 4	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, 6400	Auto, 100, 200, 400, 800, 1600, 3200 (H),6400(H1),12800(H2)	Auto, 100, 200, 400, 800, 1600, 3200, 6400, 12800 (with boost)
Image stabilization
Digital zoom
Manual focus
Lens mount	Canon EF	Canon EF/EF-S	Canon EF/EF-S	Canon EF/EF-S
Screen type	Fixed	Fixed	Fixed	Fixed
Screen size	1,040,000	230	920	1,040,000
Screen dots
Min. shutter speed	Yes	1/4000	1/8000	1/4000
Aperture priority
Shutter priority
Other features
Built-in flash		9.20	13.00	13.00
Flash range
Continuous drive	Multi
Self-timer	Center-weighted	Multi	Multi	Multi
Video	H.264	1280 x 720 (29.97, 25 fps)		1920 x 1080 (30, 25, 24 fps), 1280 x 720 (60, 50 fps), 640 x 480 (60, 50 fps)
Microphone
Storage	None	SD/SDHC/SDXC card	Compact Flash (Type I or II), UDMA	SD/SDHC/SDXC
Connectivity
USB	Yes	Yes	Yes	Yes
HDMI
Wireless	Yes
Weight		130 x 100 x 78	146 x 108 x 74	129 x 98 x 62
Orientation sensor	Optional
GPS
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The comparion is limited to 4 cameras at a time.