EOS R5vs A7 III
Canon
EOS R5 (2020)
From £2499
Best for Professional hybrid shooters, portrait & wildlife
View EOS R5
Which should you buy?
Professional Hybrid Shooters, Portrait & Wildlife — EOS R5 (2020): A landmark camera — 8K video and 45MP in one body set the standard for what mirrorless could be.
All-Round Photography & Video — A7 III (2018): Still one of the best all-round cameras money can buy — particularly strong used. The A7 III proved that full-frame doesn't have to mean compromises, and nothing at this price point has meaningfully beaten it.
Who should buy what
EOS R5 (2020)
- Professional photographers who need both resolution and video in one body
- Wildlife and sports photographers who want top AF with 20fps burst
- Hybrid shooters who need 8K or 4K/120p alongside high-resolution stills
- R5 Mark II buyers on a budget — the R5 still delivers exceptional results
A7 III (2018)
- Enthusiast photographers upgrading from APS-C for the first time
- Working photographers who need reliable AF and weather sealing
- Anyone who shoots in low light regularly
- Hybrid shooters needing both stills and video performance
Quick take: The eos r5 has the highest resolution at 45mp; the a7 iii is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | EOS R5 (2020) | A7 III (2018) |
|---|---|---|
| Price | £2,499 | £1,699 |
| Sensor | 45MP Full-Frame CMOS | 24.2MP Full-Frame Exmor R BSI CMOS |
| Resolution | 45.0MP | 24.2MP |
| Video | 8K RAW/30p, 4K/120p, 1080p/120p | 4K/30p (6K oversampled), 1080p/120p slow-motion |
| Autofocus | Dual Pixel CMOS AF II — 1053 AF zones, subject/animal detection | Phase-detect, 693 points, real-time Eye AF & animal AF |
| Stabilisation | IBIS — up to 8 stops combined with IS lenses | 5-axis IBIS, 5 stops |
| Burst Rate | 12fps mechanical, 20fps electronic | 10fps with AF/AE tracking |
| Battery Life | ~320 shots (CIPA) | ~710 shots (CIPA) |
| Weight | 650g (with battery) | 565g (body, battery, card) |
| Dimensions | 138.5 × 97.5 × 88mm | 126.9 × 95.6 × 73.7mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF, 5.76M dots, 0.76× magnification | EVF, 2.36M dots, 0.78× magnification |
| Screen | 3.15" fully articulating touchscreen | 3.0" tilting touchscreen, 921k dots |
| Mount | Canon RF mount | Sony E-mount |
| Memory Cards | CFexpress Type B + SD UHS-II | Dual SD (UHS-II slot 1, UHS-I slot 2) |
| Connectivity | USB-C, Wi-Fi, Bluetooth, HDMI | USB-C (USB 3.2), Wi-Fi, Bluetooth, NFC |
Suitability by genre
| Genre | EOS R5 | A7 III |
|---|---|---|
| Portrait | ||
| Wildlife | ||
| Vlogging & Video | — | |
| Sports | — | |
| Landscape | — | |
| Wedding | — | |
| Travel | — | |
| Street | — | |
| Video | — |
More comparisons with EOS R5
Camera family history