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Canon 5D MIII vs Sony A7S III

Portability
55 Imaging
68 Features
74 Overall
70
Canon EOS 5D Mark III front
 
Sony Alpha A7S III front
Portability
61 Imaging
65 Features
92 Overall
75

Canon 5D MIII vs Sony A7S III Key Specs

Canon 5D MIII
(Full Review)
  • 22MP - Full frame Sensor
  • 3.2" Fixed Screen
  • ISO 100 - 25600 (Bump to 102400)
  • 1/8000s Max Shutter
  • 1920 x 1080 video
  • Canon EF Mount
  • 950g - 152 x 116 x 76mm
  • Introduced May 2012
  • Superseded the Canon 5D MII
  • Updated by Canon 5D MIV
Sony A7S III
(Full Review)
  • 12MP - Full frame Sensor
  • 3" Fully Articulated Screen
  • ISO 80 - 102400 (Increase to 409600)
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Maximum Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 699g - 129 x 97 x 81mm
  • Announced July 2020
  • Earlier Model is Sony A7S II
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Canon 5D MIII vs Sony A7S III Overview

Lets look much closer at the Canon 5D MIII vs Sony A7S III, former being a Advanced DSLR while the latter is a Pro Mirrorless by rivals Canon and Sony. There is a substantial difference between the sensor resolutions of the 5D MIII (22MP) and A7S III (12MP) but both cameras boast the same sensor measurements (Full frame).

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The 5D MIII was revealed 9 years prior to the A7S III and that is quite a big difference as far as tech is concerned. Both cameras have different body design with the Canon 5D MIII being a Mid-size SLR camera and the Sony A7S III being a SLR-style mirrorless camera.

Before going right into a more detailed comparison, here is a short synopsis of how the 5D MIII matches up versus the A7S III with regards to portability, imaging, features and an overall grade.

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Reasons to pick Canon 5D MIII over the Sony A7S III

		

		

			
 5D MIII A7S III 
Screen dimensions3.2"3"Bigger screen (+0.2")
		

	

	
	

		

		
Reasons to pick Sony A7S III over the Canon 5D MIII

		

		

			
 A7S III 5D MIII 
AnnouncedJuly 2020May 2012More recent by 99 months
Screen typeFully articulatedFixed Fully Articulating screen
Screen resolution1440k1040kSharper screen (+400k dot)
Selfie screen  Take selfies
Touch screen  Quickly navigate
		

	

	
	

		

		
Common features in the Canon 5D MIII and Sony A7S III

		

		

			
 5D MIII A7S III 
Focus manually  Very precise focus
		

	

	

	
	
	
	

	

		

		
Canon 5D MIII vs Sony A7S III Physical Comparison

		

		

			
For those who are going to lug around your camera regularly, you need to factor its weight and measurements. The Canon 5D MIII has got outside dimensions of 152mm x 116mm x 76mm (6.0" x 4.6" x 3.0") accompanied by a weight of 950 grams (2.09 lbs) while the Sony A7S III has proportions of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") having a weight of 699 grams (1.54 lbs).
Take a look at the Canon 5D MIII vs Sony A7S III in our newest Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses
Keep in mind, the weight of an ILC will change dependant on the lens you are using during that time. Underneath is a front view sizing comparison of the 5D MIII against the A7S III.
Canon 5D MIII vs Sony A7S III size comparison
Considering size and weight, the portability rating of the 5D MIII and A7S III is 55 and 61 respectively.
Canon 5D MIII vs Sony A7S III top view buttons comparison		

	

	
	

		

		
Canon 5D MIII vs Sony A7S III Sensor Comparison

		

		

			
Generally, its tough to envision the difference between sensor measurements just by reviewing technical specs. The visual here may offer you a stronger sense of the sensor dimensions in the 5D MIII and A7S III.
As you can tell, both of these cameras have the same sensor dimensions albeit not the same resolution. You can expect the Canon 5D MIII to offer more detail because of its extra 10MP. Higher resolution will also allow you to crop photographs a bit more aggressively. The older 5D MIII is going to be disadvantaged with regard to sensor technology.
	
			Canon 5D MIII vs Sony A7S III sensor size comparison			
		

	

	
	

		

		
Canon 5D MIII vs Sony A7S III Screen and ViewFinder

		

		

					

		Canon 5D MIII vs Sony A7S III Screen and Viewfinder comparison	

	
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Photography Type Scores

		

	

	
Portrait Comparison
Canon 5D MIII Portrait photography factors
Sony A7S III Portrait photography factors
80
 focusing manually
 decent sensor resolution (22MP)
 great sensor size (Full frame)
 includes face detection focusing
 supports RAW files
71
 you can focus manually
 large sensor size (Full frame)
 offers face detection autofocus
 delivers RAW files
 megapixel count low (12MP)
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Street Comparison
Canon 5D MIII Street photography advice
Sony A7S III Street photography advice
58
 great sensor size (Full frame)
 supports RAW files
 environment proofing
 great high ISO (25,600)
 no moving screen
 no image stabilization
 more heavy than competition in class (950g)
76
 has image stabilization (Sensor based 5-axis)
 large sensor size (Full frame)
 delivers RAW files
 boasts touch to focus
 weather proofing
 great ISO range (102,400)
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Sports Comparison
Canon 5D MIII Sports photography info
Sony A7S III Sports photography info
71
 great max shutter speed (1/8,000 seconds)
 decent sensor resolution (22MP)
 great sensor size (Full frame)
 includes tracking autofocus
 environment proofing
 comes with phase detect AF
 slow fps (6.0 frames per second)
 no image stabilization
76
 maximum shutter speed is high (1/8,000 seconds)
 has image stabilization (Sensor based 5-axis)
 large sensor size (Full frame)
 offers tracking autofocus
 weather proofing
 good battery life (600 CIPA)
 sensor has phase detect autofocus
 megapixel count low (12MP)
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Travel Comparison
Canon 5D MIII Travel photography factors
Sony A7S III Travel photography factors
51
 environment proofing
 decent sensor resolution (22MP)
 lack of Timelapse mode
 more heavy than competition in class (950g)
 screen isn't selfie friendly
70
 good battery life (600 shots)
 weather proofing
 supports bluetooth
 boasts touch to focus
 display is selfie friendly
 megapixel count low (12MP)
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Landscape Comparison
Canon 5D MIII Landscape photography information
Sony A7S III Landscape photography information
73
 focusing manually
 swap lenses (Canon EF mount)
 screen size is good (3.2 inch)
 decent sensor resolution (22 megapixels)
 great sensor size (Full frame)
 great high ISO (25,600)
 supports RAW files
 environment proofing
 2 card slots
 no image stabilization
 lack of Timelapse mode
77
 you can focus manually
 change lenses (Sony E mount)
 screen is a decent size (3")
 has image stabilization (Sensor based 5-axis)
 large sensor size (Full frame)
 great ISO range (102,400)
 delivers RAW files
 weather proofing
 good battery life (600 shots)
 2 card slots
 megapixel count low (12MP)
Photography Glossary
Vlogging Comparison
Canon 5D MIII Vlogging factors
Sony A7S III Vlogging factors
27
 includes face detection focusing
 great video quality (1920 x 1080 pixels)
 does have external microphone support
 screen isn't selfie friendly
 no image stabilization
 more heavy than competition in class (950 grams)
77
 display is selfie friendly
 touchscreen capability
 has image stabilization (Sensor based 5-axis)
 offers face detection autofocus
 good video quality (3840 x 2160 resolution)
 includes external microphone support
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Canon 5D MIII vs Sony A7S III Specifications

		

		

					

		
		

			Detailed spec comparison table for Canon 5D MIII and Sony A7S III
 Canon EOS 5D Mark IIISony Alpha A7S III
General Information
Make Canon Sony
Model Canon EOS 5D Mark III Sony Alpha A7S III
Type Advanced DSLR Pro Mirrorless
Introduced 2012-05-22 2020-07-21
Physical type Mid-size SLR SLR-style mirrorless
Sensor Information
Chip Digic 5+ Bionz XR
Sensor type CMOS BSI-CMOS
Sensor size Full frame Full frame
Sensor measurements 36 x 24mm 35.6 x 23.8mm
Sensor area 864.0mm² 847.3mm²
Sensor resolution 22MP 12MP
Anti aliasing filter    
Aspect ratio 3:2 3:2 and  16:9
Max resolution 5760 x 3840 4240 x 2832
Max native ISO 25600 102400
Max enhanced ISO 102400 409600
Lowest native ISO 100 80
RAW support    
Lowest enhanced ISO 50 50
Autofocusing
Manual focus    
Touch focus    
Continuous AF    
AF single    
Tracking AF    
Selective AF    
AF center weighted    
AF multi area    
AF live view    
Face detection focusing    
Contract detection focusing    
Phase detection focusing    
Number of focus points 61 759
Cross focus points 41 -
Lens
Lens mount Canon EF Sony E
Amount of lenses 250 121
Crop factor 1 1
Screen
Screen type Fixed Type Fully articulated
Screen size 3.2 inch 3 inch
Screen resolution 1,040k dots 1,440k dots
Selfie friendly    
Liveview    
Touch capability    
Screen tech Clear View II TFT LCD -
Viewfinder Information
Viewfinder Optical (pentaprism) Electronic
Viewfinder resolution - 9,440k dots
Viewfinder coverage 100 percent 100 percent
Viewfinder magnification 0.71x 0.91x
Features
Minimum shutter speed 30s 30s
Fastest shutter speed 1/8000s 1/8000s
Continuous shutter rate 6.0fps 10.0fps
Shutter priority    
Aperture priority    
Manually set exposure    
Exposure compensation Yes Yes
Custom WB    
Image stabilization    
Integrated flash    
Flash range no built-in flash no built-in flash
Flash modes no built-in flash no built-in flash
External flash    
AE bracketing    
White balance bracketing    
Fastest flash synchronize 1/200s -
Exposure
Multisegment exposure    
Average exposure    
Spot exposure    
Partial exposure    
AF area exposure    
Center weighted exposure    
Video features
Video resolutions 1920 x 1080 (29.97, 25, 23.976 fps fps), 1280 x 720 (59.94, 50 fps), 640 x 480 (25, 30 fps) 3840 x 2160 @ 120p / 280 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 100p / 280 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 60p / 200 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 50p / 200 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 30p / 140 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 25p / 140 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 24p / 100 Mbps, XAVC S, MP4, H.265, Linear PCM 1920 x 1080 @ 120p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 100p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 60p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 50p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 25p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 24p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM
Max video resolution 1920x1080 3840x2160
Video file format H.264 MPEG-4, XAVC S, XAVC HS, XAVC S-1, H.264, H.265
Microphone support    
Headphone support    
Connectivity
Wireless Optional Built-In
Bluetooth    
NFC    
HDMI    
USB USB 2.0 (480 Mbit/sec) USB 3.2 Gen 1 (5 GBit/sec)
GPS Optional None
Physical
Environment sealing    
Water proof    
Dust proof    
Shock proof    
Crush proof    
Freeze proof    
Weight 950g (2.09 lb) 699g (1.54 lb)
Physical dimensions 152 x 116 x 76mm (6.0" x 4.6" x 3.0") 129 x 97 x 81mm (5.1" x 3.8" x 3.2")
DXO scores
DXO Overall score 81 85
DXO Color Depth score 24.0 23.6
DXO Dynamic range score 11.7 13.3
DXO Low light score 2293 2993
Other
Battery life 950 photographs 600 photographs
Battery style Battery Pack Battery Pack
Battery model LP-E6 NP-FZ100
Self timer Yes (2 or 10 sec) Yes (2 or 10 sec; continuous (3 or 5 exposures))
Time lapse recording   With downloadable app
Type of storage Compact Flash Type I (UDMA compatible), SD/SDHC/SDXC Dual SD/CFexpress Type A slots
Card slots Two Two
Launch price $2,780 $3,499