EOS R1vs A7S
Canon
EOS R1 (2024)
Starting from £5999 new
Best for Professional sports, wildlife & photojournalism
View EOS R1
GearScore™ Verdict — Which should you buy?
Professional Sports, Wildlife & Photojournalism — EOS R1 (2024): Canon's ultimate professional camera — 40fps, a class-leading EVF, and AI AF that simply doesn't miss.
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 R1 (2024)
- Professional sports and news photographers who cannot miss a shot
- Wildlife photographers needing the fastest AF and burst available
- Photojournalists requiring reliable pro-grade build and connectivity
- Canon R3 owners or 1D X Mark III users upgrading to mirrorless flagship
A7S (2014)
- Astrophotographers
- Low-light event videographers
- Filmmakers needing clean high-ISO footage
Quick take: The eos r1 has the highest resolution at 24mp; the a7s is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | EOS R1 (2024) | A7S (2014) |
|---|---|---|
| Price | £5,999 | £600 |
| Sensor | 24.2MP Full-Frame Stacked CMOS | 12.2MP Full-Frame BSI CMOS |
| Resolution | 24.2MP | 12.2MP |
| Video | 6K RAW/60p, 4K/120p, 1080p/240p | 1080p/60p internal, 4K via HDMI (external recorder) |
| Autofocus | Dual Pixel CMOS AF III — 100% coverage, deep learning subject detection | Phase-detect / contrast-detect hybrid AF |
| Stabilisation | IBIS — up to 8 stops combined | None |
| Burst Rate | 40fps electronic, 12fps mechanical | 5fps |
| Battery Life | ~530 shots (CIPA) | ~370 shots (CIPA) |
| Weight | 1470g (with battery) | 474g (with battery and card) |
| Dimensions | 159.5 × 143.9 × 87.3mm | 126.9 × 94.4 × 48.2mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF, 9.44M dots, 0.90× magnification | Electronic, 2.36M dots, 0.71× magnification |
| Screen | 3.2" fully articulating touchscreen | 3.0" tilting LCD, 1.23M dots |
| Mount | Canon RF mount | Sony FE (full-frame E-mount) |
| Memory Cards | Dual CFexpress Type B | Single SD / MemoryStick PRO Duo slot |
| Connectivity | USB-C (10Gbps), Wi-Fi 6GHz, Bluetooth, Ethernet, HDMI | Multi/Micro USB, Wi-Fi, NFC |
Suitability by genre
| Genre | EOS R1 | A7S |
|---|---|---|
| Sports | — | |
| Wildlife | — | |
| Photojournalism | — | |
| Vlogging & Video | ||
| Wedding | — | |
| Portrait | ||
| Astrophotography | — | |
| Street | — | |
| Travel | — | |
| Landscape | — | |
| 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