Canon EOS R50 Mirrorless Camera RF-S18- vs Sony a7III Full Frame Mirrorless Camera with FE 28-
Updated August 2026 — Canon EOS R50 Mirrorless Camera RF-S18- wins on price and weight, Sony a7III Full Frame Mirrorless Camera with FE 28- wins on image quality and autofocus.
The Canon EOS R50 is a budget-friendly option with strong video capabilities, while the Sony a7III excels in image quality and low-light performance.
Why Canon EOS R50 Mirrorless Camera RF-S18- is better
Price
Canon is significantly cheaper at $799.
Portability
Canon is lighter and more compact.
Video Features
Canon offers 6K oversampled 4K video.
Why Sony a7III Full Frame Mirrorless Camera with FE 28- is better
Image Quality
Sony has a full-frame sensor for better low-light performance.
Autofocus
Sony has more AF points and coverage.
Dynamic Range
Sony offers a 15-stop dynamic range.
Overall score
Specifications
| Spec | Canon EOS R50 Mirrorless Camera RF-S18- | Sony a7III Full Frame Mirrorless Camera with FE 28- |
|---|---|---|
| Sensor Type | APS-C | Full Frame |
| Megapixels | 24.2 | 24.2 |
| Continuous Shooting | 15 fps | 10 fps |
| Dynamic Range | 12 stops | 15 stops |
| AF Points | 651 | 693 |
Dimension comparison
Price Comparison
The Canon EOS R50 is priced at $799.00, while the Sony a7III is significantly more expensive at $1,898.00, making it about 138% costlier. This substantial price difference means that the Canon may be more appealing to those on a budget or those who are just starting in photography. The Canon's price point positions it as an entry-level option, while the Sony targets more serious photographers willing to invest in premium features and performance.
Image Quality
Both cameras feature a 24.2-megapixel sensor, but they differ in sensor type: the Canon uses an APS-C sensor, while the Sony boasts a full-frame sensor. The full-frame sensor in the Sony a7III typically offers better low-light performance and a wider dynamic range, with a 15-stop dynamic range compared to the Canon’s capabilities. This difference could be crucial for professionals or enthusiasts looking to capture high-quality images in various lighting conditions, thus elevating the Sony's standing in terms of image quality.
Autofocus Capabilities
The Canon EOS R50 features an advanced Dual Pixel CMOS AF II system with 651 AF zones, providing extensive coverage for fast and accurate focusing. In contrast, the Sony a7III also excels with 693 phase detection and 425 contrast AF points, offering a staggering 93% image coverage. While both systems are highly capable, the Sony's autofocus may provide a slight edge in complex shooting scenarios, particularly for fast-moving subjects, making it a better choice for action photography.
Shooting Speed
For capturing fast action, the Canon EOS R50 offers a competitive shooting speed of up to 12 fps with its electronic first curtain shutter and 15 fps using the silent electronic shutter. The Sony a7III, however, matches this with a continuous shooting speed of up to 10 fps while maintaining autofocus tracking. This is a minor difference, but for some photographers, that additional frame per second in the Canon could be the deciding factor for capturing those split-second moments in dynamic environments.
Video Recording Features
The Canon EOS R50 showcases impressive video capabilities, featuring 6K oversampled uncropped 4K video recording at up to 30 fps. This makes it an excellent choice for vloggers and content creators. The Sony a7III also supports 4K video recording but lacks the uncropped 6K oversampling. For users prioritizing video quality and versatility, the Canon may present a more attractive option, particularly for those engaged in vlogging or creative video projects.
Connectivity Options
Connectivity is a strong aspect of the Canon EOS R50, which includes built-in Bluetooth and Wi-Fi capabilities, allowing easy file transfer and remote control via the Canon Camera Connect app. While the Sony a7III also offers Bluetooth connectivity, it lacks the same level of user-friendly integration for quick sharing. For tech-savvy users who rely on quick uploads and remote functionalities, the Canon's features may provide a smoother experience.
Portability and Design
The Canon EOS R50 is designed to be compact and lightweight, making it an ideal choice for those who need to carry their camera on the go. Its ergonomic design and vari-angle touchscreen enhance its usability for vlogging and everyday photography. The Sony a7III, while still portable for a full-frame camera, is bulkier and heavier, which might be less convenient for casual users. This distinction makes the Canon a more suitable option for those prioritizing portability without compromising on functionality.
Which should you buy?
Choosing between the Canon EOS R50 and the Sony a7III ultimately depends on your specific needs and budget. If you are a beginner or a casual photographer looking for an affordable, lightweight camera with strong video capabilities, the Canon EOS R50 at $799.00 is an excellent choice. However, if you are a more experienced photographer who demands superior image quality, especially in low-light conditions, and are willing to invest more, the Sony a7III at $1,898.00 may be the better option. Each camera offers unique advantages, so aligning your choice with your photography goals is essential.

