Canon EOS R6 Mark III Mirrorless Camera with Extra vs Sony a5100 16-
Updated August 2026 — Canon EOS R6 Mark III Mirrorless Camera with Extra leads on price and burst speed.
The Canon EOS R6 Mark III excels in performance and features, making it ideal for professionals, while the Sony a5100 is a budget-friendly option for casual users.
Why Canon EOS R6 Mark III Mirrorless Camera with Extra is better
Image Quality
32.5MP full-frame sensor vs 24MP APS-C sensor
Autofocus
Advanced Dual Pixel AF II vs basic AF system
Burst Speed
40 fps vs 6 fps
Why Sony a5100 16- is better
Price
$2,799.00 vs $777.48
Portability
Compact design vs bulkier build
Ease of Use
User-friendly for beginners vs professional features
Overall score
Specifications
| Spec | Canon EOS R6 Mark III Mirrorless Camera with Extra | Sony a5100 16- |
|---|---|---|
| Sensor | 32.5MP Full-Frame | 24MP APS-C |
| Max FPS | 40 fps | 6 fps |
| Autofocus Points | Dual Pixel AF II | 179 AF points |
| Video Resolution | 4K | Full HD 1080p |
| Battery Life | Longer | Shorter |
Dimension comparison
Price Comparison
The Canon EOS R6 Mark III is priced at $2,799.00, while the Sony a5100 is significantly cheaper at $777.48, making it about 72% less expensive. This stark difference in price reflects the target market and intended usage of each camera. The Canon EOS R6 Mark III is designed for professional photographers or serious enthusiasts looking for high-end features and performance. In contrast, the Sony a5100 caters to casual users and beginners who want a reliable camera without breaking the bank. Thus, the decision on which camera to buy may largely depend on your budget and photographic needs.
Image Quality
The Canon EOS R6 Mark III boasts an impressive 32.5MP full-frame CMOS image sensor, providing exceptional image quality suitable for professional settings. This sensor, combined with the DIGIC X Image Processor, allows for superior low-light performance and dynamic range. Conversely, the Sony a5100 features a 24MP APS-C sensor, which, while still capable of producing high-resolution images, may not match the depth and detail offered by the full-frame sensor of the Canon. Therefore, if top-tier image quality is a priority, the Canon EOS R6 Mark III stands out as the clear winner.
Autofocus Performance
When it comes to autofocus capabilities, the Canon EOS R6 Mark III excels with its Dual Pixel CMOS AF II system, which provides advanced detection features for people, animals, and vehicles. This technology allows for rapid and precise focusing, making it ideal for fast-paced photography. In comparison, the Sony a5100 has a solid autofocus system with 179 AF points, allowing for quick focus and decent performance in most shooting conditions. However, the Canon's more sophisticated autofocus features give it a significant advantage for serious photographers needing reliable focus tracking.
Burst Shooting Speed
The Canon EOS R6 Mark III can shoot at an impressive speed of up to 40 frames per second (fps) with 20 frames of pre-continuous shooting. This capability is particularly beneficial for capturing fast-moving subjects, making it suitable for sports and wildlife photography. In contrast, the Sony a5100 has a burst shooting speed of 6 fps, which, while adequate for general photography, may not meet the needs of those who require high-speed performance. Therefore, for anyone looking to capture fast action, the Canon EOS R6 Mark III is undoubtedly the better option.
Video Capabilities
For videographers, the Canon EOS R6 Mark III offers advanced video features that support high-resolution recording, although specific details were not provided in the data. The versatility of its features makes it suitable for professional video production. Meanwhile, the Sony a5100 records in Full HD 1080p at frame rates of 24 and 60 frames per second, making it a solid choice for casual video recording. However, the lack of 4K capabilities in the a5100 might be a dealbreaker for more serious videographers, giving the Canon an edge in this category.
Build Quality and Usability
The Canon EOS R6 Mark III is designed with professionals in mind, featuring dual card slots for CFexpress and UHS II SD cards, which enhance its usability for serious shooting. The inclusion of an extra Canon LP-E6P battery also indicates a focus on extended shooting sessions. In contrast, the Sony a5100, while compact and lightweight, may lack some of the rugged build quality and extensive features that professionals might seek. Therefore, if durability and professional features are essential, the Canon EOS R6 Mark III is likely the better choice.
Portability
The Sony a5100 is designed with portability in mind, featuring a lightweight and compact design that makes it easy to carry around for everyday use. Its 16-50mm lens further enhances its versatility for casual photography. On the other hand, the Canon EOS R6 Mark III, while still manageable, is bulkier due to its advanced features and full-frame sensor. Consequently, for those prioritizing a lightweight camera that can easily fit into a bag for casual outings, the Sony a5100 would be the more appropriate option.
Which should you buy?
The choice between the Canon EOS R6 Mark III and the Sony a5100 ultimately hinges on your specific needs and budget. If you are a professional or an enthusiast seeking top-notch image quality, advanced autofocus capabilities, and high-speed performance, the Canon EOS R6 Mark III at $2,799.00 is worth the investment. However, if you are a beginner or casual photographer looking for a reliable, easy-to-use camera at an affordable price of $777.48, the Sony a5100 is a fantastic choice. Each camera serves its purpose well, catering to different audiences in the photography market.

