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Canon EOS R6 Mark II vs Sony a7 III Comparison

Storage & Battery

Canon EOS R6 Mark II

Canon EOS R6 Mark II camera image

Sony a7 III

Sony A7 III camera
Canon EOS R6 Mark II
Sony a7 III
EOS R6 Mark II
a7 III
Refers to the year this camera was officially made available for sale.
Announcement Date
Refers to the date the manufacturer publicly announced the upcoming release and general specs of this camera.
February 11, 2022
February 27, 2018
Camera Type
Camera Size
Camera Weight

The Sony a7 III takes the lead with a score of 81, while the Canon EOS R6 Mark II trails closely behind with 78/100. Both cameras are mirrorless and share similarities in size and weight, with the Canon being slightly lighter at 588g and smaller at 138.4 x 98.4 x 88.4mm.

The Canon EOS R6 Mark II, released in 2022, offers a more recent launch. Despite its lower score, the camera’s lighter weight and smaller size provide advantages for photographers who value portability.

Taking these factors into account, the Sony a7 III emerges as the winner in this comparison, offering a higher score and better value. However, the Canon EOS R6 Mark II remains a strong contender for those prioritizing compactness and the latest technology.

Canon EOS R6 Mark II vs Sony a7 III Overview and Optics

The Canon EOS R6 Mark II wins the optics comparison with a score of 83/100, while the Sony a7 III scores 81/100. Both cameras have similar specifications, such as 24 and 24.2 megapixels, CMOS sensors, full-frame sensor sizes, and image stabilization. They also have different lens mounts, with the Canon using an RF mount and the Sony using an FE mount.

The Canon EOS R6 Mark II outperforms the Sony a7 III in certain areas. Its shooting speed of 40 is significantly faster than the Sony’s 10, allowing for more efficient and responsive shooting. The Canon’s Digic X processor also provides faster processing and better image quality compared to the Sony’s Bionz X processor.

On the other hand, the Sony a7 III has a higher DXOMARK score for its sensor at 96, compared to the Canon’s score of 91. This means that the Sony’s sensor performs better in terms of dynamic range, color depth, and low-light performance. However, this advantage may not be significant enough to overcome the other benefits provided by the Canon EOS R6 Mark II.

In the optics comparison, the Canon EOS R6 Mark II is the better camera due to its faster shooting speed and more advanced processor. The Sony a7 III does have a slightly better sensor, but this advantage is not enough to make it the winner in this comparison. Both cameras offer excellent image quality and features, but the Canon EOS R6 Mark II’s superior performance makes it the preferred choice for photographers seeking the best optics.

The higher the number of megapixels, the more detail the cameras sensor can capture.
24 MP
24.2 MP
Image Resolution
Image resolution is measured in pixels and megapixels, width by height. The higher the number, the higher its resolution.
6000 x 4000 px
6000 x 4000 px
Sensor Type
The camera sensor captures light and records the image. Sensors vary in physical size, the number of pixels, and quality.
Sensor Size
The sensor size contributes to the overall quality as well as the dynamic and tonal range a camera can capture. As a rule of thumb, the more surface there is to read the light, the more information it will capture.
24 x 36 mm
23.8 x 35.6 mm
Sensor Format
Refers to the most commonly used sensor sizes.
Full Frame
Full Frame
Frame Rate
The number of sequential frames per second the camera can write to the memory card when shooting in burst or continuous mode.
40 fps
10 fps
Lens Mount
The lens mount will tell you what type of lens range you can fit onto the camera body. Often the same camera company will have different lens ranges for different cameras.
Canon RF
Sony FE
Image Processor
The image processor in the camera converts the information collected on the sensor for digital storage on the memory card.
Digic X
Bionz X
Aspect Ratio
The aspect ratio refers to the proportional difference between width and height. The most popular aspect ratios are 3:2 and 4:3.
Minimum ISO (Native)
Refers to the lowest native (or 'base') ISO setting. Lower ISO are less sensitive to light but make a cleaner image.
Maximum ISO (Native)
Refers to the highest native (or 'base') ISO setting. Higher ISO is necessary for low-light situations or night photography, but higher ISOs often introduce grain or noise.
Minimum ISO (Expanded)
Expanded (or extended) ISO is a digitally enhanced feature available on some cameras. It allows you to push beyond the native ISO range if necessary.
Maximum ISO (Expanded)
Expanded (or extended) ISO is a digitally enhanced feature available on some cameras. It allows you to push beyond the native ISO range if necessary.
Minimum Shutter Speed
The minimum shutter speed will tell you the longest exposure your camera can take without using an external accessory.
30 s
30 s
Maximum Shutter Speed
The maximum shutter speed tells you the length inside 1 second the camera will capture. These can sometimes be extended with accessories such as extra external batteries.
1/ 8000 s
1/ 8000 s
Autofocus Points
Autofocus points show where the camera is focusing graphically as squares or brackets in Live View or on an electronic viewfinder. These points are also used for light meter readings.
In-body Stabilization
In-body Stabilization means the camera has a certain technology embedded that counteracts camera shake.
Viewfinder Type
The viewfinder type is either electronic or optical. Electronic viewfinders will have a small screen in the viewfinder. Optical viewfinders will use prisms and mirrors to look through the lens.
Viewfinder Resolution
3,690,000 dots
2,359,296 dots

Canon EOS R6 Mark II vs Sony a7 III Video Performance

The Canon EOS R6 Mark II outperforms the Sony a7 III in video capabilities with a score of 83 compared to the Sony’s 70. Both cameras share common specifications, such as 4K max video resolution and max video dimensions of 3840 x 2160. However, the Canon EOS R6 Mark II surpasses the Sony a7 III in certain aspects, making it the winner in this comparison.

One significant advantage of the Canon EOS R6 Mark II is its max video frame rate of 60fps, while the Sony a7 III only offers a max video frame rate of 30fps. This higher frame rate allows for smoother and more detailed video capture, particularly in fast-moving scenes or when shooting slow-motion footage.

Despite its lower video score, the Sony a7 III still delivers high-quality 4K video resolution and impressive video dimensions. However, its lower frame rate and lack of built-in time-lapse functionality give the Canon EOS R6 Mark II a clear advantage in terms of video capabilities.

Indicates if this camera is capable of recording video.
Max Video Resolution
The best resolution this camera can capture video in. Modern cameras can capture up to 8K video.
Max Video Dimensions
Video resolution measured by the greatest number of pixels possible in each frame, width by height. A higher resolution means more detail or clarity in your video.
3840 x 2160 px
3840 x 2160 px
Max Video Frame Rate
How many frames per second your video will capture. Most cameras have options for multiple frame rates, depending on the resolution you shoot in. For a general video, 24p or 30p is the standard, but more serious filmmakers may need a higher frame rate for creative effect.
60 p
30 p
Time-Lapse Built In
A built in time-lapse mode will allow continuous shooting throughout a prolonged period of time to be compressed into a sped up video.
Video File Format
Different cameras can record in various video file formats. The File format you record in can impact how you edit and use the files.

Canon EOS R6 Mark II vs Sony a7 III Features and Benefits

The Sony a7 III outperforms the Canon EOS R6 Mark II in features with a score of 81/100 compared to the Canon’s 72/100. Both cameras share several specifications, including a 3-inch screen size, touchscreen functionality, flip screen, WIFI, and Bluetooth connectivity. However, the Sony a7 III excels in certain areas, while the Canon EOS R6 Mark II has its own advantages.

The Sony a7 III boasts a higher screen resolution of 921,600 dots, which provides clearer and sharper image previews compared to the Canon’s 1,620,000 dots. Additionally, the Sony a7 III includes GPS functionality, which is absent in the Canon EOS R6 Mark II. This feature allows users to geotag their photos, making it easier to organize, locate, and share images based on their location.

On the other hand, the Canon EOS R6 Mark II still has its merits. Although it has a lower overall feature score, it does not necessarily mean it is an inferior camera. Users may find the Canon’s interface and controls more suitable for their needs and preferences. Moreover, the Canon brand has a strong reputation for producing high-quality cameras and lenses, which may appeal to loyal Canon users.

When comparing the Canon EOS R6 Mark II and the Sony a7 III, the latter emerges as the winner in terms of features. The higher screen resolution and GPS functionality contribute to its superior score. However, the Canon EOS R6 Mark II remains a viable option for users who prioritize brand loyalty and user experience. Ultimately, the choice between these two cameras depends on individual preferences and requirements.

Built-in Flash
A built-in flash will often be positioned right above the lens. This will automatically pop up when you activate it.
External Flash
External flashes are often connected through a hot shoe at the top of a camera, or a cable at the side of the camera.
GPS features in a camera will include location metadata to each of your photographs.
Weather Sealing
Weather sealing capabilities will give you more confidence when shooting in unfavourable conditions.
Screen Type
Touch Screen
Touchscreen allows you to change camera settings and access menus with a swipe of your finger, instead of using buttons.
Screen Size
Screen Resolution
Screen dots indicate the resolution of the LCD screen by including each sub pixel.
1,620,000 dots
921,600 dots
Flip Screen
A flip screen (or articulating screen) is a second screen which can flip out from the side or top of the camera. This rotating screen allows you more freedom to take photos at different angles.
Live View
Live View feature allows you to see a continuous live video of what is being seen through your lens.
Bluetooth capabilities allow you wireless control of your camera with other external devices.

Canon EOS R6 Mark II vs Sony a7 III Storage and Battery

The Canon EOS R6 Mark II and Sony a7 III both score 68/100 in storage and battery, showing no difference in this aspect. Each camera features two memory card slots, with both accepting SD, SDHC, and SDXC cards. However, the Sony a7 III also supports Memory Stick Duo, Pro Duo, and Pro-HG Duo cards, offering more versatility in storage options.

The Canon EOS R6 Mark II uses an LP-E6NH battery, providing 360 shots per charge and USB charging capabilities. In contrast, the Sony a7 III is equipped with an NP-FZ100 battery, which lasts for 750 shots, giving it a significant advantage in battery life. However, the Sony a7 III does not support USB charging.

Despite equal scores, the Sony a7 III excels with longer battery life and additional memory card compatibility, while the Canon EOS R6 Mark II offers the convenience of USB charging.

Storage and Battery
Storage and Battery
Memory Card
SD / SDHC / SDXC (UHS-II compatible)
SD / SDHC / SDXC, Memory Stick Duo / Pro Duo / Pro-HG Duo
Dual Memory Card Slots
Battery Type
Battery Life
Approximately how long this cameras battery will last measured by how many photographs you will be able to take.
360 shots
750 shots
USB Charging
Sensor scores tested by DXOMARK
Overall Score
DXOMARK overall sensor score.
Portrait (Color Depth)
As described by DXOMARK 'The Portrait score in our camera sensor reviews defines color depth performance and its unit is a number of bits. A color depth of 22 bits is excellent; differences below 1 bit are barely noticeable.'
25.1 bits
Landscape (Dynamic Range)
As described by DXOMARK 'The Landscape score in our camera sensor tests defines the maximum dynamic range of the camera sensor and its unit is an exposure value (EV). A value of 12 EV is excellent with differences below 0.5 EV usually not noticeable.'
14.7 EVs
Sports (Low-Light ISO)
Described by DXOMARK as 'The maximal value of ISO sensitivity needed to reach a given value of Signal-to-Noise Ratio (SNR). The greater the value, the better'
Main Features
Extra Features
Construction and Durability
Handling and Ergonomics
Value for Money
Total Score

Canon EOS R6 Mark II vs Sony a7 III – Our Verdict

Canon EOS R6 Mark II vs Sony a7 III Comparison image.

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