Canon EOS R3vs A1 II
Canon
Canon EOS R3 (2021)
Starting from £5999 new
Best for Sports & photojournalism professionals
View Canon EOS R3
VS
Sony
A1 II (2025)
Starting from £6500 new
Best for Professional sports, wildlife & high-resolution studio work
View A1 II
GearScore™ Verdict — Which should you buy?
Sports & Photojournalism Professionals — Canon EOS R3 (2021): The pinnacle of Canon's mirrorless lineup for speed — Eye Control AF and 30fps burst in the most rugged body Canon has ever produced.
Professional Sports, Wildlife & High-Resolution Studio Work — A1 II (2025): The most complete camera ever made — 50MP, 30fps, 8K, and the world's best EVF in a single flagship body.
Who should buy what
Canon EOS R3 (2021)
- Professional sports and photojournalism photographers
- Canon users who need the fastest burst and most reliable AF in the system
- R5 users who want a pro-grade grip and faster shooting speed
- Event photographers who need eye-controlled AF and dual card slots
A1 II (2025)
- Professional sports and wildlife photographers who need 30fps, 50MP, and the best AF available
- Commercial and advertising photographers who demand 50MP resolution alongside pro video specs
- Photojournalists who need a single body capable of handling every assignment
- Sony system shooters ready to invest in the absolute best
Quick take: The a1 ii has the highest resolution at 50mp; the canon eos r3 is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | Canon EOS R3 (2021) | A1 II (2025) |
|---|---|---|
| Price | £5,999 | £6,500 |
| Sensor | 24.1MP full-frame BSI stacked CMOS | 50.1MP full-frame stacked BSI CMOS |
| Resolution | 24.1MP | 50.1MP |
| Video | 6K RAW, 4K/120p, 1080p/180p | 8K/30p, 4K/120p 10-bit, 4K/240p super slow-motion |
| Autofocus | Dual Pixel CMOS AF II with Eye Control AF | AI subject recognition — human, animal, bird, insect, vehicle, aircraft, train |
| Stabilisation | 8-stop IBIS | 8.5-stop IBIS (with in-lens OSS) |
| Burst Rate | 30fps electronic / 12fps mechanical | 30fps electronic (with full AF/AE), 10fps mechanical |
| Battery Life | 620 shots (CIPA) | ~530 shots (CIPA) |
| Weight | 1015g body only | 743g body only |
| Dimensions | 150.0 × 142.6 × 87.2mm | 136.1 × 96.9 × 82.9mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | 0.76" OLED EVF, 5.76M dots, 120fps | EVF 0.9× 9.44M-dot — the highest resolution EVF available |
| Screen | 3.2" fully articulating touchscreen | 3.2" fully articulating touchscreen, 2.1M dots |
| Mount | Canon RF | Sony E-mount (full-frame) |
| Memory Cards | Dual CFexpress Type B | Dual CFexpress Type A / SD UHS-II slots |
| Connectivity | USB-C 3.2, HDMI full-size, Wi-Fi 6, Bluetooth, LAN | USB-C 3.2 Gen 2, Wi-Fi 6GHz, Bluetooth 5.3, HDMI full-size |
Suitability by genre
| Genre | Canon EOS R3 | A1 II |
|---|---|---|
| Sports & Action | — | |
| Wildlife | ||
| Photojournalism | — | |
| Vlogging & Video | ||
| Wedding & Events | — | |
| Travel | ||
| Sports | — | |
| Portrait | — | |
| Landscape | — |
More comparisons with Canon EOS R3
Camera family history