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The Sony a7R III outshines the Canon EOS RP with a score of 83/100 compared to the latter’s 65/100. Both cameras are mirrorless and were released in 2017 and 2019, respectively. They share similarities in size, with the Sony a7R III measuring 127x96x74mm and the Canon EOS RP at 133x85x70mm.
The Sony a7R III excels in performance and features, justifying its higher launch price of $3200 compared to the Canon EOS RP’s $1300. However, the Canon EOS RP is lighter, weighing only 440g (0.97lbs) compared to the Sony a7R III’s 657g (1.45lbs), making it more portable.
Given these specifications, the Sony a7R III is the superior camera in terms of performance, while the Canon EOS RP offers a more budget-friendly and lightweight option.
Canon EOS RP vs Sony a7R III Overview and Optics
The Sony a7R III outperforms the Canon EOS RP in optics with a score of 84/100 compared to the Canon’s 67/100. Both cameras share some common specifications, such as a CMOS sensor, full-frame sensor size, and respective lens mounts (Canon RF for the EOS RP and Sony FE for the a7R III).
The Sony a7R III takes the lead with its higher megapixel count of 42.4, double the shooting speed at 10 frames per second, and an impressive DXOMARK score of 100 for its sensor. Additionally, the a7R III features image stabilization, which the Canon EOS RP lacks. These factors contribute to the Sony a7R III’s superior image quality and performance in various shooting conditions.
On the other hand, the Canon EOS RP has a lower megapixel count at 26 and a slower shooting speed of 5 frames per second. Its Digic 8 processor and a DXOMARK score of 85 for the sensor fall short compared to the Sony a7R III’s Bionz X processor and perfect sensor score. The absence of image stabilization further puts the EOS RP at a disadvantage in terms of image quality and versatility.
Despite these shortcomings, the Canon EOS RP is still a reliable camera with decent optics. It may not be on par with the Sony a7R III, but it has its merits, especially for those who prefer the Canon RF lens mount and ecosystem.
Taking all factors into account, the Sony a7R III emerges as the winner in optics, offering superior image quality, performance, and features. The Canon EOS RP, while not as impressive, remains a viable option for users who prioritize the Canon system and are content with its capabilities.
Optics
Canon EOS RP
Sony a7R III
Megapixels
26 MP
42.4 MP
Image Resolution
6240 x 4160 px
7952 x 5304 px
Sensor Type
CMOS
CMOS
Sensor Size
24 x 35.9 mm
24 x 35.9 mm
Sensor Format
Full Frame
Full Frame
Frame Rate
5 fps
10 fps
Lens Mount
Canon RF
Sony FE
Image Processor
Digic 8
Bionz X
Aspect Ratio
3:2
3:2
Minimum ISO (Native)
100
100
Maximum ISO (Native)
40,000
32,000
Minimum ISO (Expanded)
100
50
Maximum ISO (Expanded)
102400
102400
Minimum Shutter Speed
30 s
30 s
Maximum Shutter Speed
1/ 4000 s
1/ 8000 s
Autofocus Points
4,779
425
In-body Stabilization
Viewfinder Type
Electronic
Electronic
Viewfinder Resolution
2,360,000 dots
3,686,400 dots
Canon EOS RP vs Sony a7R III Video Performance
The Canon EOS RP outperforms the Sony a7R III in video capabilities, scoring 70/100 compared to the Sony’s 56/100. Both cameras have 4K max video resolution and 3840 x 2160 max video dimensions, making them suitable for high-quality video recording.
The winning camera, Canon EOS RP, offers a max video frame rate of 25fps, which is slightly lower than the Sony a7R III’s 30fps. However, the Canon EOS RP compensates for this by having built-in time-lapse functionality, which the Sony a7R III lacks. This feature allows the Canon EOS RP users to create stunning time-lapse videos without needing additional software or accessories.
On the other hand, the Sony a7R III has a higher max video frame rate of 30fps, providing smoother video playback. This advantage may appeal to videographers who prioritize smoothness in their footage. However, the absence of built-in time-lapse functionality limits the Sony’s versatility in video production.
In comparing the video capabilities of these two cameras, the Canon EOS RP emerges as the better option due to its built-in time-lapse functionality, despite having a slightly lower max video frame rate. The Sony a7R III’s higher frame rate may be beneficial for some users, but its lack of time-lapse functionality restricts its overall video capabilities. Therefore, the Canon EOS RP proves to be a more versatile and user-friendly choice for videographers.
Video
Canon EOS RP
Sony a7R III
Video
Max Video Resolution
4K
4K
Max Video Dimensions
3840 x 2160 px
3840 x 2160 px
Max Video Frame Rate
25 p
30 p
Time-Lapse Built In
Video File Format
MP4
XAVC S, AVCHD Ver. 2.0, MP4
Canon EOS RP vs Sony a7R III Features and Benefits
The Sony a7R III wins the feature comparison against the Canon EOS RP with a score of 83/100, while the Canon EOS RP scores 70/100. Both cameras share several specifications, including a 3-inch touchscreen, flip screen, WiFi, and Bluetooth capabilities. However, neither camera has GPS functionality.
The Sony a7R III outperforms the Canon EOS RP in screen resolution, with 1,440,000 dots compared to the EOS RP’s 1,040,000 dots. This higher resolution provides a clearer and more detailed image preview, allowing for better composition and focus accuracy. This advantage makes the Sony a7R III a better choice for photographers who prioritize image quality and detail.
Although the Canon EOS RP has a lower feature score, it still offers a solid set of features. Its touchscreen, flip screen, WiFi, and Bluetooth capabilities make it a reliable and user-friendly camera for various photography needs. However, its lower screen resolution may not be ideal for those who require the highest image quality possible.
When considering these points, the Sony a7R III stands out as the better camera in terms of features. Its higher screen resolution offers a significant advantage for photographers seeking the best image quality. On the other hand, the Canon EOS RP remains a reliable option with a good set of features, though it may not be the top choice for those prioritizing image detail.
In comparing the Canon EOS RP and Sony a7R III, the Sony camera proves to be the superior choice, primarily due to its higher screen resolution. However, both cameras offer valuable features and capabilities, making them suitable for various photography needs.
Features
Canon EOS RP
Sony a7R III
Built-in Flash
External Flash
GPS
Weather Sealing
Screen Type
LCD
LCD
Touch Screen
Screen Size
3"
3"
Screen Resolution
1,040,000 dots
1,440,000 dots
Flip Screen
Live View
Wi-Fi
Bluetooth
Canon EOS RP vs Sony a7R III Storage and Battery
The Sony a7R III outperforms the Canon EOS RP in storage and battery with a score of 65/100, compared to the Canon’s 29/100. Both cameras accept SD, SDHC, and SDXC memory cards with UHS-II compatibility. However, the Sony a7R III has two memory card slots, providing more storage capacity and flexibility than the Canon EOS RP, which only has one slot.
In terms of battery life, the Sony a7R III is superior, offering 650 shots per charge with its NP-FZ100 battery. The Canon EOS RP, using an LP-E17 battery, only provides 250 shots per charge. This means that the Sony a7R III allows for longer shooting sessions without needing to change batteries.
The Canon EOS RP has one advantage in this category – it supports USB charging, while the Sony a7R III does not. This feature can be convenient for on-the-go charging and power supply.
Considering these factors, the Sony a7R III is the clear winner in storage and battery capacity, ensuring longer shooting sessions and greater storage flexibility. The Canon EOS RP’s USB charging feature may be beneficial for some users, but it does not make up for its shortcomings in battery life and memory card slots.
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 a7R III:
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As an Amazon Associate, I earn from qualifying purchases. Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.
If you buy a product through one of our referral links we will earn a commission (without costing you anything).
Prices last updated on .
As an Amazon Associate, I earn from qualifying purchases. Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.