Canon EOS 5D Mark III vs Canon EOS 500D vs Canon EOS 50D vs Canon EOS 600D

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Basic Info
Price range
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Release date	Mar 2, 2012	Mar 25, 2009	Aug 26, 2008	Feb 7, 2011

Characteristics
Body type	Mid-size SLR	Compact SLR	Mid-size SLR	Compact SLR
Max resolution	5760 x 3840	4752 x 3168	4752 x 3168	5184 x 3456
Pixels	22 MP	15 MP	15 MP	18 MP
Sensor detectors	23	16	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 (6400-12800 with boost)	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	Fully articulated
Screen size	1,040,000	920	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		13.00	13.00	13.00
Flash range
Continuous drive	Multi
Self-timer	Center-weighted	Multi	Multi	Multi
Video	H.264	1920 x 1080 (20 fps), 1280 x 720 (30 fps), 640 x 480 (30 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	Compact Flash (Type I or II), UDMA	SD/SDHC/SDXC
Connectivity
USB	Yes	Yes	Yes	Yes
HDMI
Wireless	Yes
Weight		129 x 98 x 62	146 x 108 x 74	133 x 100 x 80
Orientation sensor	Optional
GPS
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The comparion is limited to 4 cameras at a time.