Canon EOS R5 Mark II Body vs Sony ILCE-7M3K/B a7 III 24.
Updated August 2026 — Canon EOS R5 Mark II Body leads on user interface and low light.
The Canon EOS R5 Mark II offers superior features and performance, making it the better choice for professionals, while the Sony ILCE-7M3K/B a7 III is a more budget-friendly option.
Why Canon EOS R5 Mark II Body is better
Higher Resolution
Canon has a 45MP sensor compared to Sony's 24.2MP.
Faster Shooting
Canon can shoot at 30 fps, while Sony is limited to 10 fps.
Advanced Video
Canon captures video and stills simultaneously without interruption.
Why Sony ILCE-7M3K/B a7 III 24. is better
Lower Price
Sony is priced at $1,898.00 compared to Canon's $3,898.95.
Compact Design
Sony is lighter and more portable.
Good AF System
Sony has 693 phase-detection AF points.
Overall score
Specifications
| Spec | Canon EOS R5 Mark II Body | Sony ILCE-7M3K/B a7 III 24. |
|---|---|---|
| Sensor Type | CMOS | Exmor R CMOS |
| Video Capability | Advanced | 4K HDR |
| ISO Range | 100-51,200 | 50-204,800 |
| Battery Life | Approx. 320 | Approx. 710 |
| Build Quality | Robust | Compact |
Dimension comparison
Overview of the Canon EOS R5 Mark II and Sony ILCE-7M3K/B a7 III
The Canon EOS R5 Mark II is priced at $3,898.95, while the Sony ILCE-7M3K/B a7 III is about 51% less expensive at $1,898.00. This significant price difference highlights a fundamental distinction between these two high-performance mirrorless cameras. The Canon model is characterized by its advanced features and capabilities, making it a premium choice for professionals, whereas the Sony option offers a more budget-friendly solution without sacrificing essential quality.
Image Sensor Capabilities
The Canon EOS R5 Mark II features a revolutionary 45MP full-frame back-illuminated stacked CMOS sensor, allowing for exceptional image quality and detail. In contrast, the Sony ILCE-7M3K/B a7 III utilizes a 24.2MP full-frame Exmor R CMOS sensor. While the Sony's sensor is capable of producing stunning images with a 15-stop dynamic range, the Canon's higher resolution provides a distinct advantage for those who require finer detail, especially in large prints or cropping scenarios.
Autofocus Performance
The autofocus capabilities of the Canon EOS R5 Mark II are significantly enhanced with its new focus system, including eye control focus. This feature allows photographers to maintain focus on subjects even when briefly obscured. The Canon model excels with its ability to lock focus on moving subjects, which is crucial for action photography. Conversely, the Sony ILCE-7M3K/B a7 III offers 693 phase-detection and 425 contrast AF points, providing 93% image coverage. While both cameras excel in autofocus, the Canon's new innovations may appeal more to users focused on fast-paced action.
Continuous Shooting Speed
When it comes to continuous shooting speed, the Canon EOS R5 Mark II offers impressive performance with up to 30 fps using its electronic shutter. This capability is especially beneficial for sports and wildlife photography, where capturing fleeting moments is vital. The Sony ILCE-7M3K/B a7 III, on the other hand, provides a respectable continuous shooting speed of up to 10 fps with both silent and mechanical shutter options. While the Sony model is quite capable, the Canon's superior speed is a notable advantage for those who prioritize action photography.
Video Recording Features
In terms of video capabilities, the Canon EOS R5 Mark II shines with its ability to capture both video and still images simultaneously without interruption. It also supports advanced video features that enhance its versatility for content creators. The Sony ILCE-7M3K/B a7 III is no slouch either, offering 4K HDR movie recording capability. However, the Canon's advancements in video technology set it apart, making it more suitable for professionals who require high-end video performance alongside photography.
Build Quality and Design
Both cameras are built with the demands of professional photographers in mind. The Canon EOS R5 Mark II boasts a robust design, reflecting its status as a flagship model. It caters to users looking for a serious tool for demanding environments. The Sony ILCE-7M3K/B a7 III, while compact and light, still offers reliable operability and comfortable handling. The choice between the two may come down to personal preference regarding aesthetics and ergonomics, but both provide high-quality builds.
Brand Reputation and Support
Canon and Sony are both respected brands in the photography world, each with a loyal following. The Canon EOS R5 Mark II holds a sales rank of 26,800, while the Sony ILCE-7M3K/B a7 III is slightly ahead with a sales rank of 13,996. This difference in sales rank may indicate a broader acceptance of the Sony model among users looking for a balance of performance and price. Both brands offer extensive support and accessories, but the choice may hinge on existing brand loyalty or specific system advantages.
Which should you buy?
Ultimately, the decision between the Canon EOS R5 Mark II and the Sony ILCE-7M3K/B a7 III will depend on your specific needs and budget. If you require the latest technology, superior image resolution, and enhanced video capabilities, the Canon EOS R5 Mark II is worth the investment at $3,898.95. However, if you're looking for a capable mirrorless camera that offers excellent performance at a significantly lower price of $1,898.00, the Sony ILCE-7M3K/B a7 III is an outstanding choice. Each camera has its strengths, making it essential to consider what features are most important for your photography style.

