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Canon EOS 5D Mark III vs Sony a7R III Comparison

Optics
Video
Features
Storage & Battery

Canon EOS 5D Mark III

canon eos 5d mark iii
65%

Sony a7R III

sony a7r iii
Winner!
83%
Canon EOS 5D Mark III
vs
Sony a7R III
Price
3499
3200
Brand
Canon
Sony
Model
EOS 5D Mark III
a7R III
Released
2012
2017
Announcement Date
02/03/2012
25/10/2017
Camera Type
DSLR
Mirrorless
Camera Size
152 x 116 x 76 mm
127 x 96 x 74 mm
Camera Weight
950
657
Compare

The Sony a7R III outperforms the Canon EOS 5D Mark III with a score of 83/100 compared to 65/100. Both cameras share similar specifications, such as their announcement and release years, 2012 and 2017, respectively. The Sony a7R III, however, has a lower launch price of $3200, compared to the Canon EOS 5D Mark III’s $3499.

The winning Sony a7R III is a mirrorless camera, making it lighter at 657g and smaller with dimensions of 127 x 96 x 74mm. In contrast, the Canon EOS 5D Mark III is a DSLR camera, weighing 950g and measuring 152 x 116 x 76mm. Despite its higher score, the Canon still has some advantages, such as its sturdy build and long-standing reputation in the photography world.

Taking all these factors into account, the Sony a7R III is the superior camera due to its higher score, lower price, and more compact design, while the Canon EOS 5D Mark III remains a reliable choice for those who prefer DSLR cameras.

Canon EOS 5D Mark III vs Sony a7R III Overview and Optics

The Sony a7R III outperforms the Canon EOS 5D Mark III in optics, with a score of 84/100 compared to the Canon’s 67/100. Both cameras share some specifications, such as the CMOS sensor type, full-frame sensor size, and their respective proprietary lens mounts – the Sony FE and Canon EF.

The Sony a7R III excels with its higher megapixel count, at 42.4 compared to the Canon’s 22.3, providing greater image resolution. Additionally, the Sony has a faster shooting speed of 10 frames per second, compared to the Canon’s 6, allowing for better action and sports photography. The Sony’s Bionz X processor and DXOMARK sensor score of 100 contribute to its superior image quality. Furthermore, the Sony a7R III has built-in image stabilization, which the Canon lacks, enabling sharper handheld shooting.

The Canon EOS 5D Mark III, while not as strong in optics, has the advantage of the extensive Canon EF lens system, which offers a wide variety of lenses for various shooting scenarios. The Canon’s Digic 5+ processor, while not as powerful as the Sony’s Bionz X, still provides good image processing capabilities.

In comparing the optics of these two cameras, the Sony a7R III is the clear winner due to its higher megapixel count, faster shooting speed, better sensor score, and built-in image stabilization. However, the Canon EOS 5D Mark III benefits from the vast Canon EF lens system, which may be a consideration for photographers already invested in Canon gear.

Optics
Optics
67%
84%
Megapixels
22.3 MP
42.4 MP
Image Resolution
5760 x 3840 px
7952 x 5304 px
Sensor Type
CMOS
CMOS
Sensor Size
24 x 36 mm
24 x 35.9 mm
Sensor Format
Full Frame
Full Frame
Frame Rate
6 fps
10 fps
Lens Mount
Canon EF
Sony FE
Image Processor
Digic 5+
Bionz X
Aspect Ratio
3:2
3:2
Minimum ISO (Native)
100
100
Maximum ISO (Native)
25600
32000
Minimum ISO (Expanded)
50
50
Maximum ISO (Expanded)
102400
102400
Minimum Shutter Speed
30 s
30 s
Maximum Shutter Speed
1/ 8000 s
1/ 8000 s
Autofocus Points
61
425
In-body Stabilization
1
Viewfinder Type
Optical (pentaprism)
Electronic
Viewfinder Resolution
N/A
3686400 dots

Canon EOS 5D Mark III vs Sony a7R III Video Performance

Comparing the video capabilities of the Canon EOS 5D Mark III and the Sony a7R III, both cameras have a video score of 56/100. Despite the similar scores, there are differences in their video specifications.

Both the Canon EOS 5D Mark III and the Sony a7R III lack built-in time-lapse functionality. The Canon 5D Mark III has a maximum video resolution of Full HD, with dimensions of 1920 x 1080, and can record at a maximum frame rate of 60fps. On the other hand, the Sony a7R III has a higher maximum video resolution of 4K, with dimensions of 3840 x 2160, but records at a lower maximum frame rate of 30fps.

The Sony a7R III is better when it comes to video resolution, offering 4K quality that provides more detail and clarity in video recordings compared to the Full HD offered by the Canon 5D Mark III. However, the Canon 5D Mark III has the advantage of a higher frame rate, which allows for smoother video playback and better slow-motion capabilities.

In terms of video capabilities, the Sony a7R III stands out with its 4K resolution, making it suitable for users who prioritize video quality and detail. The Canon EOS 5D Mark III, with its higher frame rate, is more suitable for users who require smooth motion in their videos, such as action or sports videographers.

Taking the specifications into consideration, photographers and videographers must decide which camera best suits their needs. The Sony a7R III is ideal for those seeking higher resolution, while the Canon 5D Mark III is better for users needing higher frame rates.

Video
Video
56%
56%
Video
1
1
Max Video Resolution
Full HD
4K
Max Video Dimensions
1920 x 1080 px
3840 x 2160 px
Max Video Frame Rate
60 p
30 p
Time-Lapse Built In
Video File Format
MOV
XAVC S, AVCHD Ver. 2.0, MP4

Canon EOS 5D Mark III vs Sony a7R III Features and Benefits

The Sony a7R III is the winner in terms of features, scoring 83/100, while the Canon EOS 5D Mark III scores 59/100. Both cameras have a screen, but the Sony a7R III has a smaller 3-inch screen compared to the Canon EOS 5D Mark III’s 3.2-inch screen. However, the Sony a7R III’s screen resolution is higher with 1,440,000 dots compared to the Canon EOS 5D Mark III’s 1,040,000 dots. Neither camera has GPS capabilities.

The Sony a7R III outperforms the Canon EOS 5D Mark III with its touchscreen, flip screen, WIFI, and Bluetooth capabilities, which the Canon EOS 5D Mark III lacks. These additional features make the Sony a7R III more convenient and user-friendly, as it allows for easier navigation, flexible shooting angles, and seamless connectivity with other devices.

The Canon EOS 5D Mark III has a larger screen, but this advantage is offset by its lower screen resolution and lack of additional features. The larger screen size does not necessarily provide a better user experience, as the Sony a7R III compensates with higher resolution and added functionality.

Based on these specifications, the Sony a7R III is evidently the superior camera in terms of features. Its touchscreen, flip screen, WIFI, and Bluetooth capabilities make it a more versatile and user-friendly option compared to the Canon EOS 5D Mark III. On the other hand, the Canon EOS 5D Mark III’s larger screen size is its only advantage, but it falls short in other aspects, making the Sony a7R III the clear winner.

Features
Features
59%
83%
Built-in Flash
External Flash
1
1
GPS
Weather Sealing
1
1
Screen Type
TFT LCD
LCD
Touch Screen
1
Screen Size
3.2
3
Screen Resolution
1040000 dots
1440000 dots
Flip Screen
1
Live View
1
1
Wi-Fi
1
Bluetooth
1

Canon EOS 5D Mark III vs Sony a7R III Storage and Battery

The Canon EOS 5D Mark III outperforms the Sony a7R III in storage and battery, scoring 76 out of 100 compared to the Sony’s 65. Both cameras have two memory card slots and accept SD/SDHC/SDXC cards. However, the Canon also supports Compact Flash and UDMA cards, offering more storage options.

A significant advantage of the Canon 5D Mark III is its battery life, capable of capturing 950 shots compared to the Sony a7R III’s 650 shots. The Canon uses an LP-E6 battery, while the Sony uses an NP-FZ100 battery. Neither camera offers USB charging.

Although the Sony a7R III has a lower score in this category, it is worth noting that it is compatible with UHS-II SD cards, allowing for faster data transfer. This can be beneficial for photographers who need to quickly transfer high-resolution photos or videos.

To sum up, the Canon EOS 5D Mark III offers a longer battery life and more storage options, making it the better choice for those prioritizing storage and battery performance. The Sony a7R III, on the other hand, provides faster data transfer with its UHS-II compatibility, which may appeal to some users.

Storage and Battery
Storage and Battery
76%
65%
Memory Card
SD / SDHC / SDXC, Compact Flash, UDMA
SD / SDHC / SDXC (UHS-II compatible)
Dual Memory Card Slots
1
1
Battery Type
LP-E6
NP-FZ100
Battery Life
950 shots
650 shots
USB Charging
DXOMARK Scores
Sensor scores tested by DXOMARK
Overall Score
81
100
Portrait (Color Depth)
24 bits
26 bits
Landscape (Dynamic Range)
11.7 EVs
14.7 EVs
Sports (Low-Light ISO)
2293
3523
Scores
Main Features
Extra Features
Construction and Durability
Handling and Ergonomics
Value for Money
Total Score

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Canon EOS 5D Mark III vs Sony a7R III Comparison image.

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