EOS R6 Mark IIIvs FX3
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
FX3 (2021)
Starting from £3799 new
Best for Professional video, documentary & cinematic filmmaking
View FX3
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.
Professional Video, Documentary & Cinematic Filmmaking — FX3 (2021): The definitive run-and-gun cinema camera — A7S III sensor quality in a body built specifically for video professionals.
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
FX3 (2021)
- Professional videographers and filmmakers who need cinema-quality colour science in a compact body
- Documentary and run-and-gun shooters who need 4K/120p and built-in XLR audio
- Sony A7S III owners who want a purpose-built video body alongside their stills camera
- Gimbal and drone operators who need a compact full-frame cinema camera
Quick take: The eos r6 mark iii has the highest resolution at 32mp; the eos r6 mark iii is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | EOS R6 Mark III (2025) | FX3 (2021) |
|---|---|---|
| Price | £2,799 | £3,799 |
| Sensor | 32.5MP full-frame stacked CMOS | 12.1MP full-frame BSI Exmor R CMOS (same as A7S III) |
| Resolution | 32.5MP | 12.1MP |
| Video | 4K 60fps oversampled from 7K, 6K RAW internal | 4K/120p, 4K/60p 10-bit, 12-bit RAW output, S-Log3, S-Cinetone |
| Autofocus | Dual Pixel CMOS AF II — deep-learning subject detection for people, animals and vehicles, up to 40fps tracking | Real-time tracking with subject recognition (human, animal) |
| Stabilisation | In-body 5-axis IS, up to 8.5 stops | 5-axis IBIS — 5 stops |
| Burst Rate | 40fps (electronic shutter), 12fps (mechanical) | 10fps mechanical, 10fps electronic |
| Battery Life | ~580 shots (CIPA, LP-E6P) | ~640 shots (CIPA) |
| Weight | 670g (body with battery and card) | 715g body only (with XLR handle) |
| Dimensions | 138.4 × 98.4 × 88.4mm | 129.7 × 78.0 × 84.5mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF, 5.76M-dot, up to 120fps | None — monitor/external EVF use only |
| Screen | 3.2-inch vari-angle touchscreen, 2.1M-dot | 3.0" touchscreen, fully articulating |
| Mount | Canon RF | Sony FE mount (full-frame E-mount) |
| Memory Cards | Dual SD / SDHC / SDXC (UHS-II) | Dual CFexpress Type A / SD UHS-II slots |
| Connectivity | USB-C, Wi-Fi 6, Bluetooth 5.0, 2.5GbE | USB-C (10Gbps), full-size HDMI, XLR via handle, Bluetooth, Wi-Fi |
Suitability by genre
| Genre | EOS R6 Mark III | FX3 |
|---|---|---|
| Sports & Action | — | |
| Wildlife | — | |
| Vlogging & Video | ||
| Portrait | ||
| Landscape | — | |
| Travel | ||
| Street | ||
| Casual | — | |
| Low Light | — | |
| Wedding | — |
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