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Canon EOS RP vs Sony a7 III Comparison

Storage & Battery

Canon EOS RP

Canon EOS RP product image

Sony a7 III

Sony A7 III camera
Canon EOS RP
Sony a7 III
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 14, 2019
February 27, 2018
Camera Type
Camera Size
Camera Weight

The Sony a7 III outperforms the Canon EOS RP with a score of 81 compared to 65/100. Both cameras are mirrorless and were released within a year of each other, with the Canon EOS RP launching in 2019 and the Sony a7 III in 2018. They share similar dimensions, but the Sony a7 III is heavier at 650g compared to the Canon EOS RP’s 440g.

The Sony a7 III’s higher score signifies its superior performance and features, justifying its higher launch price of $2000 compared to the Canon EOS RP’s $1300. However, the Canon EOS RP’s lower weight makes it a more portable option for those prioritizing mobility.

When considering these cameras, the Sony a7 III is the better choice for photographers seeking top-notch performance, while the Canon EOS RP may appeal to users who value a lighter and more affordable camera.

Canon EOS RP vs Sony a7 III Overview and Optics

The Sony a7 III outperforms the Canon EOS RP in optics, earning a score of 81 out of 100, compared to the Canon’s 67. Both cameras share several specifications, such as having a CMOS sensor, a full-frame sensor size, and similar megapixel counts (26 for Canon and 24.2 for Sony). Additionally, both cameras utilize their respective lens mounts, with the Canon using the Canon RF mount and the Sony using the Sony FE mount.

The Sony a7 III excels in its shooting speed, boasting 10 frames per second, which is double the Canon EOS RP’s 5 frames per second. The Sony also has a higher DXOMARK score for its sensor, at 96 compared to the Canon’s 85. This indicates better overall image quality. Furthermore, the Sony a7 III features image stabilization, providing steadier shots and reducing the need for a tripod or other stabilization tools.

Despite its lower score, the Canon EOS RP has a slightly higher megapixel count of 26, compared to the Sony’s 24.2. This means the Canon can produce slightly larger images and offer more flexibility in cropping and printing. However, this advantage is minimal and may not be significant for most users.

When considering the optics of these two cameras, the Sony a7 III emerges as the stronger contender due to its faster shooting speed, better sensor performance, and image stabilization feature. While the Canon EOS RP has a minor advantage in megapixels, the overall optics performance of the Sony a7 III is superior, making it the better choice for those prioritizing image quality and performance.

The higher the number of megapixels, the more detail the cameras sensor can capture.
26 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.
6240 x 4160 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 35.9 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.
5 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 8
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/ 4000 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
2,360,000 dots
2,359,296 dots

Canon EOS RP vs Sony a7 III Video Performance

The Canon EOS RP and the Sony a7 III have similar video capabilities. Both cameras share some common specifications, such as 4K max video resolution and 3840 x 2160 max video dimensions.

The Canon EOS RP has a maximum video frame rate of 25fps, while the Sony a7 III offers a slightly higher frame rate of 30fps. Both cameras have built-in time-lapse functionality. This feature allows users to create stunning time-lapse videos without the need for additional equipment or software, making it a more versatile option for videographers.

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.
25 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 RP vs Sony a7 III Features and Benefits

The Sony a7 III wins the features comparison with a score of 81/100, while the Canon EOS RP scores 70/100. Both cameras share several specifications, including a 3-inch screen size, touchscreen capabilities, flip screen, absence of GPS, and the presence of WIFI and Bluetooth connectivity.

The Sony a7 III outperforms the Canon EOS RP in certain aspects. For instance, its screen resolution is higher at 921,600 dots compared to the Canon EOS RP’s 1,040,000 dots. This difference in resolution provides users with a clearer and sharper image preview, which can be crucial for composing and reviewing shots.

On the other hand, the Canon EOS RP has its advantages as well. Despite having a lower overall feature score, it still offers a robust set of features that cater to various photography needs. Additionally, the Canon EOS RP may be more affordable for some users, making it a more attractive option for those on a budget.

Taking all these factors into account, the Sony a7 III is the better camera in terms of features. Its higher score reflects its superior performance in areas such as screen resolution. However, the Canon EOS RP remains a competitive option for those who prioritize affordability or are loyal to the Canon brand. Ultimately, the choice between these two cameras depends on individual preferences and requirements, as both cameras offer a strong set of features to satisfy a wide range of photography enthusiasts.

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.
1,040,000 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 RP vs Sony a7 III Storage and Battery

The Sony a7 III outperforms the Canon EOS RP in storage and battery with a score of 68/100, compared to the Canon’s 29/100. Both cameras accept SD/SDHC/SDXC memory cards, but the Sony a7 III also supports Memory Stick Duo/Pro Duo/Pro-HG Duo cards and has two memory card slots, while the Canon EOS RP has only one slot and is UHS-II compatible.

The Sony a7 III’s battery life of 750 shots is significantly longer than the Canon EOS RP’s 250 shots, using an NP-FZ100 battery type. However, the Canon EOS RP has the advantage of USB charging, which the Sony a7 III lacks.

Considering these factors, the Sony a7 III offers superior storage capabilities and battery life, making it the better choice for extended shooting sessions and flexibility in memory card options. The Canon EOS RP’s USB charging feature is a plus, but it does not outweigh the advantages of the Sony a7 III in this comparison.

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.
250 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.'
24.3 bits
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.'
11.9 EVs
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

Alternatives to the Canon EOS RP and Sony a7 III

Canon EOS RP vs Sony a7 III Comparison image.

Are you still undecided about which camera is right for you? Have a look at these popular comparisons that feature the Canon EOS RP or the Sony a7 III:

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