EOS R6 Mark IIvs A7S
GearScore™ Verdict — Which should you buy?
Portraits & Action — EOS R6 Mark II (2022): 40fps burst, 8-stop IBIS, and Canon's best-in-class Dual Pixel AF — exceptional for action, sports, and portrait work.
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 R6 Mark II (2022)
- Wedding and event photographers who need the most reliable Canon AF available
- Sports and wildlife shooters who want 40fps and subject detection
- R6 owners looking for a significant AF and burst speed upgrade
- Hybrid shooters who need 4K/60p and IBIS in a versatile full-frame body
A7S (2014)
- Astrophotographers
- Low-light event videographers
- Filmmakers needing clean high-ISO footage
Quick take: The eos r6 mark ii has the highest resolution at 24mp; the a7s is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | EOS R6 Mark II (2022) | A7S (2014) |
|---|---|---|
| Price | £2,099 | £600 |
| Sensor | 24.2MP Full-frame BSI CMOS | 12.2MP Full-Frame BSI CMOS |
| Resolution | 24.2MP | 12.2MP |
| Video | 4K/60p 10-bit oversampled, 6K RAW out, FHD/180p | 1080p/60p internal, 4K via HDMI (external recorder) |
| Autofocus | Dual Pixel CMOS AF II, 6072 zones, deep-learning subject tracking | Phase-detect / contrast-detect hybrid AF |
| Stabilisation | 5-axis IBIS, 8.0 stops (coordinated with IS lenses) | None |
| Burst Rate | 12fps mechanical, 40fps electronic | 5fps |
| Battery Life | ~760 shots (CIPA) | ~370 shots (CIPA) |
| Weight | 670g body only | 474g (with battery and card) |
| Dimensions | 138.4 × 98.4 × 88.4mm | 126.9 × 94.4 × 48.2mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF, 3.69M dots, 0.76× magnification | Electronic, 2.36M dots, 0.71× magnification |
| Screen | 3.0" fully articulating touchscreen | 3.0" tilting LCD, 1.23M dots |
| Mount | Canon RF mount (full-frame) | Sony FE (full-frame E-mount) |
| Memory Cards | Dual SD UHS-II slots | Single SD / MemoryStick PRO Duo slot |
| Connectivity | USB-C 3.1, Bluetooth, Wi-Fi | Multi/Micro USB, Wi-Fi, NFC |
Suitability by genre
| Genre | EOS R6 Mark II | A7S |
|---|---|---|
| Portrait | ||
| Sports & Action | ||
| Wedding & Events | — | |
| Vlogging & Video | ||
| Landscape | ||
| Wildlife | — | |
| Astrophotography | — | |
| Street | — | |
| Travel | — |
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