EOS R5vs A7S
Canon
EOS R5 (2020)
Starting from £2499 new
Best for Professional hybrid shooters, portrait & wildlife
View EOS R5
GearScore™ Verdict — 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.
Astrophotography & Low-Light — A7S (2014): The original A7S pioneered the concept of a camera optimised entirely for low light. Its 12.2MP sensor has enormous photosites — extraordinary high-ISO performance that still holds up. Lacking IBIS and limited to 1080p internally (4K requires external recorder), it is a specialist tool. For astrophotography, event videography, or any scenario where light is genuinely scarce, it remains outstanding.
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
A7S (2014)
- Astrophotographers
- Low-light event videographers
- Filmmakers needing clean high-ISO footage
Quick take: The eos r5 has the highest resolution at 45mp; the a7s is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | EOS R5 (2020) | A7S (2014) |
|---|---|---|
| Price | £2,499 | £600 |
| Sensor | 45MP Full-Frame CMOS | 12.2MP Full-Frame BSI CMOS |
| Resolution | 45.0MP | 12.2MP |
| Video | 8K RAW/30p, 4K/120p, 1080p/120p | 1080p/60p internal, 4K via HDMI (external recorder) |
| Autofocus | Dual Pixel CMOS AF II — 1053 AF zones, subject/animal detection | Phase-detect / contrast-detect hybrid AF |
| Stabilisation | IBIS — up to 8 stops combined with IS lenses | None |
| Burst Rate | 12fps mechanical, 20fps electronic | 5fps |
| Battery Life | ~320 shots (CIPA) | ~370 shots (CIPA) |
| Weight | 650g (with battery) | 474g (with battery and card) |
| Dimensions | 138.5 × 97.5 × 88mm | 126.9 × 94.4 × 48.2mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF, 5.76M dots, 0.76× magnification | Electronic, 2.36M dots, 0.71× magnification |
| Screen | 3.15" fully articulating touchscreen | 3.0" tilting LCD, 1.23M dots |
| Mount | Canon RF mount | Sony FE (full-frame E-mount) |
| Memory Cards | CFexpress Type B + SD UHS-II | Single SD / MemoryStick PRO Duo slot |
| Connectivity | USB-C, Wi-Fi, Bluetooth, HDMI | Multi/Micro USB, Wi-Fi, NFC |
Suitability by genre
| Genre | EOS R5 | A7S |
|---|---|---|
| Portrait | ||
| Wildlife | — | |
| Vlogging & Video | ||
| Sports | — | |
| Landscape | ||
| Wedding | — | |
| Astrophotography | — | |
| Street | — | |
| Travel | — | |
| Sports & Action | — |
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