EOS R6 Mark IIIvs A7R II
Canon
EOS R6 Mark III (2025)
Starting from £2799 new
Best for Hybrid photo & video professionals, sports and wildlife shooters
View EOS R6 Mark III
Sony
A7R II (2015)
Starting from £799 new
Best for Portrait, landscape & studio photography
View A7R II
GearScore™ Verdict — Which should you buy?
Hybrid Photo & Video Professionals, Sports And Wildlife Shooters — EOS R6 Mark III (2025): The EOS R6 Mark III takes everything that made the Mark II a hybrid favourite and pushes it further — a faster stacked sensor, smarter autofocus, and genuinely professional video specs. It's the most complete all-rounder in Canon's RF full-frame lineup, sitting just below the R5 II in resolution while matching it for speed.
Portrait, Landscape & Studio Photography — A7R II (2015): The A7R II transformed the A7R series — adding IBIS, 4K video, BSI sensor tech, and phase-detect AF in one generation. A landmark Sony camera.
Who should buy what
EOS R6 Mark III (2025)
- Working photographers who need a single body for both stills and serious video work
- Sports and wildlife shooters who need 40fps burst shooting with reliable subject tracking
- Hybrid content creators producing 4K and 6K footage alongside high-resolution stills
- Enthusiasts upgrading from the EOS R6 Mark II who want faster AF and more resolution
A7R II (2015)
- Landscape and architecture photographers who want 42MP with IBIS for handheld shooting
- Portrait and studio photographers who need high resolution with improved AF reliability
- Sony FE system users who want a capable high-resolution body at a used price
- A7R I owners who need the stabilisation, 4K, and improved AF the original lacked
Quick take: The a7r ii has the highest resolution at 42mp; the a7r ii is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | EOS R6 Mark III (2025) | A7R II (2015) |
|---|---|---|
| Price | £2,799 | £799 |
| Sensor | 32.5MP full-frame stacked CMOS | 42.4MP Full-Frame BSI CMOS Exmor R |
| Resolution | 32.5MP | 42.4MP |
| Video | 4K 60fps oversampled from 7K, 6K RAW internal | 4K/30p (S35 or full-frame), 1080p/120p |
| Autofocus | Dual Pixel CMOS AF II — deep-learning subject detection for people, animals and vehicles, up to 40fps tracking | 399 phase-detect + 25 contrast-detect AF points, face detection |
| Stabilisation | In-body 5-axis IS, up to 8.5 stops | IBIS — 5-axis, up to 4.5 stops (first A7R with IBIS) |
| Burst Rate | 40fps (electronic shutter), 12fps (mechanical) | 5fps |
| Battery Life | ~580 shots (CIPA, LP-E6P) | ~290 shots (CIPA) |
| Weight | 670g (body with battery and card) | 625g (with battery and card) |
| Dimensions | 138.4 × 98.4 × 88.4mm | 126.9 × 95.7 × 60.3mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF, 5.76M-dot, up to 120fps | EVF, OLED 2.36M dots, 0.78× magnification |
| Screen | 3.2-inch vari-angle touchscreen, 2.1M-dot | 3.0" tilting LCD, 1.23M dots (no touch) |
| Mount | Canon RF | Sony FE (full-frame E-mount) |
| Memory Cards | Dual SD / SDHC / SDXC (UHS-II) | Single SD UHS-I slot |
| Connectivity | USB-C, Wi-Fi 6, Bluetooth 5.0, 2.5GbE | USB, Wi-Fi, NFC |
Suitability by genre
| Genre | EOS R6 Mark III | A7R II |
|---|---|---|
| Sports & Action | ||
| Wildlife | — | |
| Vlogging & Video | ||
| Portrait | ||
| Landscape | ||
| Travel | ||
| Street | — | |
| Casual | — | |
| Architecture | — |
GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →
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Camera family history