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Canon 5D MIII vs Sony A7R III

Portability
55
Imaging
68
Features
74
Overall
70
Canon EOS 5D Mark III front
 
Sony Alpha A7R III front
Portability
63
Imaging
78
Features
93
Overall
84

Canon 5D MIII vs Sony A7R III Key Specs

Canon 5D MIII
(Full Review)
  • 22MP - Full frame Sensor
  • 3.2" Fixed Display
  • ISO 100 - 25600 (Boost to 102400)
  • 1/8000s Max Shutter
  • 1920 x 1080 video
  • Canon EF Mount
  • 950g - 152 x 116 x 76mm
  • Launched May 2012
  • Replaced the Canon 5D MII
  • New Model is Canon 5D MIV
Sony A7R III
(Full Review)
  • 42MP - Full frame Sensor
  • 3" Tilting Display
  • ISO 100 - 32000 (Boost to 102400)
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Maximum Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 657g - 127 x 96 x 74mm
  • Announced October 2017
  • Replaced the Sony A7R II
  • Updated by Sony A7R IV
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Canon 5D MIII vs Sony A7R III Overview

Below, we are comparing the Canon 5D MIII versus Sony A7R III, former being a Advanced DSLR while the other is a Pro Mirrorless by manufacturers Canon and Sony. There exists a substantial gap between the resolutions of the 5D MIII (22MP) and A7R III (42MP) but they enjoy the exact same sensor size (Full frame).

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The 5D MIII was revealed 6 years earlier than the A7R III and that is quite a big difference as far as technology is concerned. Both cameras come with different body type with the Canon 5D MIII being a Mid-size SLR camera and the Sony A7R III being a SLR-style mirrorless camera.

Before getting through a detailed comparison, below is a quick introduction of how the 5D MIII matches up versus the A7R III in terms of portability, imaging, features and an overall rating.

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Reasons to pick Canon 5D MIII over the Sony A7R III

 5D MIII A7R III 
Display dimension3.2"3"Larger display (+0.2")

Reasons to pick Sony A7R III over the Canon 5D MIII

 A7R III 5D MIII 
AnnouncedOctober 2017May 2012Fresher by 66 months
Display typeTiltingFixed Tilting display
Display resolution1440k1040kCrisper display (+400k dot)
Touch friendly display Easily navigate

Common features in the Canon 5D MIII and Sony A7R III

 5D MIII A7R III 
Focus manually Very precise focus
Selfie screen Neither offers selfie screen

Canon 5D MIII vs Sony A7R III Physical Comparison

When you are looking to carry your camera often, you are going to need to think about its weight and size. The Canon 5D MIII offers external measurements of 152mm x 116mm x 76mm (6.0" x 4.6" x 3.0") having a weight of 950 grams (2.09 lbs) whilst the Sony A7R III has specifications of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") having a weight of 657 grams (1.45 lbs).

Contrast the Canon 5D MIII versus Sony A7R III in our completely new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Do not forget, the weight of an ILC will vary based on the lens you are utilizing at that time. Following is the front view overall size comparison of the 5D MIII versus the A7R III.

Canon 5D MIII vs Sony A7R III size comparison

Looking at dimensions and weight, the portability score of the 5D MIII and A7R III is 55 and 63 respectively.

Canon 5D MIII vs Sony A7R III top view buttons comparison

Canon 5D MIII vs Sony A7R III Sensor Comparison

Sometimes, its difficult to picture the gap between sensor sizing only by reading through a spec sheet. The photograph below will help provide you a much better sense of the sensor sizing in the 5D MIII and A7R III.

As you can see, the 2 cameras posses the exact same sensor measurements but different megapixels. You can expect to see the Sony A7R III to give you greater detail because of its extra 20MP. Greater resolution will make it easier to crop photos somewhat more aggressively. The older 5D MIII is going to be behind when it comes to sensor tech.

Canon 5D MIII vs Sony A7R III sensor size comparison

Canon 5D MIII vs Sony A7R III Screen and ViewFinder

Canon 5D MIII vs Sony A7R III Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Canon 5D MIII as a Portrait photography camera
Sony A7R III as a Portrait photography camera
80
you can focus manually
MP count decent (22MP)
great sensor size (Full frame)
includes face detection focus
exports RAW files
86
has manual focus
excellent MP (42 megapixels)
large sensor size (Full frame)
comes with face detection focus
delivers RAW formats
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Street Comparison

Canon 5D MIII Street photography info
Sony A7R III Street photography info
58
great sensor size (Full frame)
exports RAW files
weather proofing
very good high ISO (25,600)
screen does not articulate
lack of image stabilization
more heavy than average in class (950 grams)
79
screen tilts
has image stabilization (Sensor based 5-axis)
large sensor size (Full frame)
delivers RAW formats
boasts focus via touch
weather proof
good high ISO (32,000)
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Sports Comparison

Canon 5D MIII as a Sports photography camera
Sony A7R III as a Sports photography camera
71
great max shutter speed (1/8,000 seconds)
MP count decent (22MP)
great sensor size (Full frame)
includes tracking autofocus
weather proofing
has phase detect auto focus
low fps (6.0 frames/s)
lack of image stabilization
89
maximum shutter speed is high (1/8,000s)
has image stabilization (Sensor based 5-axis)
excellent MP (42 megapixels)
large sensor size (Full frame)
comes with tracking autofocus
weather proof
better than average battery life (650 shots)
sensor has phase detect auto focus
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Travel Comparison

Canon 5D MIII Travel photography information
Sony A7R III Travel photography information
51
weather proofing
MP count decent (22MP)
doesn't have Timelapse mode
more heavy than average in class (950g)
doesn't contain selfie friendly screen
74
better than average battery life (650 CIPA)
weather proof
has bluetooth
boasts focus via touch
excellent MP (42MP)
display is not selfie friendly
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Landscape Comparison

Canon 5D MIII Landscape photography details
Sony A7R III Landscape photography details
73
you can focus manually
swap lenses (Canon EF mount)
screen size is decent (3.2 inch)
MP count decent (22MP)
great sensor size (Full frame)
very good high ISO (25,600)
exports RAW files
weather proofing
has double storage slots
lack of image stabilization
doesn't have Timelapse mode
87
has manual focus
switch lenses (Sony E mount)
screen size is good (3")
has image stabilization (Sensor based 5-axis)
excellent MP (42MP)
large sensor size (Full frame)
no low pass filter
good high ISO (32,000)
delivers RAW formats
weather proof
better than average battery life (650 CIPA)
has dual storage slots
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Vlogging Comparison

Canon 5D MIII Vlogging advice
Sony A7R III Vlogging advice
27
includes face detection focus
video res high (1920 x 1080 pixels)
has external microphone port
doesn't contain selfie friendly screen
lack of image stabilization
more heavy than average in class (950g)
37
screen is touchscreen
has image stabilization (Sensor based 5-axis)
comes with face detection focus
video res high (3840 x 2160 pxls)
includes external microphone jack
display is not selfie friendly
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Canon 5D MIII vs Sony A7R III Specifications

Detailed spec comparison table for Canon 5D MIII and Sony A7R III
 Canon EOS 5D Mark IIISony Alpha A7R III
General Information
Company Canon Sony
Model type Canon EOS 5D Mark III Sony Alpha A7R III
Category Advanced DSLR Pro Mirrorless
Launched 2012-05-22 2017-10-25
Body design Mid-size SLR SLR-style mirrorless
Sensor Information
Powered by Digic 5+ Bionz X
Sensor type CMOS BSI-CMOS
Sensor size Full frame Full frame
Sensor measurements 36 x 24mm 35.9 x 24mm
Sensor surface area 864.0mm² 861.6mm²
Sensor resolution 22MP 42MP
Anti alias filter
Aspect ratio 3:2 3:2 and 16:9
Max resolution 5760 x 3840 7952 x 5304
Max native ISO 25600 32000
Max enhanced ISO 102400 102400
Lowest native ISO 100 100
RAW format
Lowest enhanced ISO 50 50
Autofocusing
Manual focusing
AF touch
Continuous AF
AF single
Tracking AF
AF selectice
AF center weighted
AF multi area
Live view AF
Face detect AF
Contract detect AF
Phase detect AF
Total focus points 61 425
Cross type focus points 41 -
Lens
Lens support Canon EF Sony E
Number of lenses 250 121
Crop factor 1 1
Screen
Display type Fixed Type Tilting
Display diagonal 3.2 inch 3 inch
Resolution of display 1,040 thousand dot 1,440 thousand dot
Selfie friendly
Liveview
Touch friendly
Display tech Clear View II TFT LCD -
Viewfinder Information
Viewfinder type Optical (pentaprism) Electronic
Viewfinder resolution - 3,686 thousand dot
Viewfinder coverage 100% 100%
Viewfinder magnification 0.71x 0.78x
Features
Minimum shutter speed 30s 30s
Fastest shutter speed 1/8000s 1/8000s
Continuous shutter speed 6.0fps 10.0fps
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Set WB
Image stabilization
Integrated flash
Flash distance no built-in flash no built-in flash
Flash options no built-in flash Off, Auto, Fill-flash, Slow Sync, Rear Sync, Red-eye reduction, Wireless, Hi-speed sync
Hot shoe
AE bracketing
White balance bracketing
Fastest flash sync 1/200s -
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Supported 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 (30p, 25p, 24p), 1920 x 1080 (60p, 60i, 24p), 1440 x 1080 (30p), 640 x 480 (30p)
Max video resolution 1920x1080 3840x2160
Video format H.264 MPEG-4, AVCHD, XAVC S
Microphone input
Headphone input
Connectivity
Wireless Optional Built-In
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 3.1 Gen 1(5 GBit/sec)
GPS Optional None
Physical
Environment seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 950g (2.09 lbs) 657g (1.45 lbs)
Dimensions 152 x 116 x 76mm (6.0" x 4.6" x 3.0") 127 x 96 x 74mm (5.0" x 3.8" x 2.9")
DXO scores
DXO Overall rating 81 100
DXO Color Depth rating 24.0 26.0
DXO Dynamic range rating 11.7 14.7
DXO Low light rating 2293 3523
Other
Battery life 950 images 650 images
Style of battery Battery Pack Battery Pack
Battery ID LP-E6 NP-FZ100
Self timer Yes (2 or 10 sec) Yes (2 or 10 sec; continuous (3 or 5 exposures))
Time lapse recording
Storage media Compact Flash Type I (UDMA compatible), SD/SDHC/SDXC Two SD/SDHC/SDXC slots (UHS-II support on one)
Storage slots Dual Dual
Cost at release $2,780 $2,800