Canon EOS 5D Mark III vs Canon ELPH 115 IS vs Canon ELPH 300 HS vs Canon EOS 50D

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Basic Info
Price range
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Release date	Mar 2, 2012	Jan 29, 2013	Feb 7, 2011	Aug 26, 2008

Characteristics
Body type	Mid-size SLR	Ultracompact	Ultracompact	Mid-size SLR
Max resolution	5760 x 3840	4608 x 3456	4000 x 3000	4752 x 3168
Pixels	22 MP	16 MP	12 MP	15 MP
Sensor detectors	23			16
Sensor type	CMOS	BSI-CMOS	BSI-CMOS	CMOS
Processor	Digic 5+	DIGIC 5	DIGIC 4 with iSAPS technology	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, 3200	Auto, 100, 200, 400, 800, 1600, 3200 (H),6400(H1),12800(H2)
Image stabilization		Optical	Optical
Digital zoom
Manual focus		3	3
Lens mount	Canon EF			Canon EF/EF-S
Screen type	Fixed	Fixed	Fixed	Fixed
Screen size	1,040,000	461	230	920
Screen dots
Min. shutter speed	Yes	1/2000	1/2000	1/8000
Aperture priority
Shutter priority
Other features
Built-in flash		3.50	3.50	13.00
Flash range
Continuous drive	Multi
Self-timer	Center-weighted	Multi	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 (24fps), 1280 x 720 (30 fps) 640 x 480 (30, 120 fps), 320 x 240 (30, 240 fps)
Microphone		Mono	Mono
Storage	None	SD/SDHC/SDXC	SD/SDHC/SDXC/MMC/MMCplus/HC MMCplus	Compact Flash (Type I or II), UDMA
Connectivity
USB	Yes	Yes	Yes	Yes
HDMI
Wireless	Yes
Weight		93 x 57 x 20	92 x 56 x 20	146 x 108 x 74
Orientation sensor	Optional
GPS
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The comparion is limited to 4 cameras at a time.