EOS R6 Mark IIvs A7R III
VS
Sony
A7R III (2017)
Starting from £1799 new
Best for Landscape, studio & commercial photography
View A7R III
GearScore™ Verdict — Which should you buy?
Portraits & Action — EOS R6 Mark II (2022): 40fps burst, 8-stop IBIS, and Canon's best-in-class Dual Pixel AF — exceptional for action, sports, and portrait work.
Landscape, Studio & Commercial Photography — A7R III (2017): The camera that converted professionals to mirrorless — 42MP, IBIS, and 10fps in a body that still competes today.
Who should buy what
EOS R6 Mark II (2022)
- Wedding and event photographers who need the most reliable Canon AF available
- Sports and wildlife shooters who want 40fps and subject detection
- R6 owners looking for a significant AF and burst speed upgrade
- Hybrid shooters who need 4K/60p and IBIS in a versatile full-frame body
A7R III (2017)
- Landscape and studio photographers who need 42MP resolution at a used-price discount vs A7R IV
- Canon/Nikon DSLR professionals considering a mirrorless switch at a lower investment
- Commercial and product photographers who want full-frame resolution with IBIS for handheld work
- Portrait photographers who want the sharpest possible full-frame files for large print work
Quick take: The a7r iii has the highest resolution at 42mp; the a7r iii is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | EOS R6 Mark II (2022) | A7R III (2017) |
|---|---|---|
| Price | £2,099 | £1,799 |
| Sensor | 24.2MP Full-frame BSI CMOS | 42.4MP full-frame BSI Exmor R CMOS |
| Resolution | 24.2MP | 42.4MP |
| Video | 4K/60p 10-bit oversampled, 6K RAW out, FHD/180p | 4K/30p (full-frame readout), 1080p/120p |
| Autofocus | Dual Pixel CMOS AF II, 6072 zones, deep-learning subject tracking | 399 phase-detect + 425 contrast AF points — real-time Eye AF |
| Stabilisation | 5-axis IBIS, 8.0 stops (coordinated with IS lenses) | 5-axis IBIS — 5.5 stops |
| Burst Rate | 12fps mechanical, 40fps electronic | 10fps with AF/AE tracking |
| Battery Life | ~760 shots (CIPA) | ~650 shots (CIPA) |
| Weight | 670g body only | 650g body only |
| Dimensions | 138.4 × 98.4 × 88.4mm | 126.9 × 95.6 × 73.7mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF, 3.69M dots, 0.76× magnification | EVF, 3.69M dots, 0.78× magnification |
| Screen | 3.0" fully articulating touchscreen | 3.0" touchscreen, tilting |
| Mount | Canon RF mount (full-frame) | Sony FE mount (full-frame E-mount) |
| Memory Cards | Dual SD UHS-II slots | Dual SD slots (one UHS-II) |
| Connectivity | USB-C 3.1, Bluetooth, Wi-Fi | USB-C, Bluetooth, Wi-Fi, 3.5mm mic jack |
Suitability by genre
| Genre | EOS R6 Mark II | A7R III |
|---|---|---|
| Portrait | ||
| Sports & Action | — | |
| Wedding & Events | — | |
| Vlogging & Video | ||
| Landscape | ||
| Wildlife | — | |
| Wedding | — | |
| Street | — | |
| Sports | — |
More comparisons with EOS R6 Mark II
Camera family history