EOS R5vs A7S II
Canon
EOS R5 (2020)
Starting from £2499 new
Best for Professional hybrid shooters, portrait & wildlife
View EOS R5
VS
Sony
A7S II (2015)
Starting from £799 new
Best for Low-light video, documentary & available-light filmmaking
View A7S II
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.
Low-Light Video, Documentary & Available-Light Filmmaking — A7S II (2015): A landmark in mirrorless history — the first Sony with IBIS and internal 4K, its low-light video capability still impresses today at a used-market price.
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 II (2015)
- Filmmakers and videographers who want legendary low-light performance at a used-price discount
- Documentary shooters working in unpredictable available light conditions
- A7S III shooters who want a second Sony FE body for backup or B-camera use
- Budget-conscious video producers who want full-frame 4K with S-Log at an accessible price
Quick take: The eos r5 has the highest resolution at 45mp; the a7s ii is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | EOS R5 (2020) | A7S II (2015) |
|---|---|---|
| Price | £2,499 | £799 |
| Sensor | 45MP Full-Frame CMOS | 12.1MP full-frame BSI Exmor CMOS |
| Resolution | 45.0MP | 12.1MP |
| Video | 8K RAW/30p, 4K/120p, 1080p/120p | 4K/30p internal (full sensor readout), 1080p/120p, S-Log2/S-Log3 |
| Autofocus | Dual Pixel CMOS AF II — 1053 AF zones, subject/animal detection | 169 phase-detect + 25 contrast AF — limited by modern standards |
| Stabilisation | IBIS — up to 8 stops combined with IS lenses | 5-axis IBIS — 4.5 stops (first Sony mirrorless with IBIS) |
| Burst Rate | 12fps mechanical, 20fps electronic | 5fps continuous |
| Battery Life | ~320 shots (CIPA) | ~370 shots (CIPA) |
| Weight | 650g (with battery) | 584g body only |
| Dimensions | 138.5 × 97.5 × 88mm | 126.9 × 95.7 × 60.3mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF, 5.76M dots, 0.76× magnification | EVF, 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 mount (full-frame E-mount) |
| Memory Cards | CFexpress Type B + SD UHS-II | Dual SD UHS-I slots |
| Connectivity | USB-C, Wi-Fi, Bluetooth, HDMI | USB Micro-B, Bluetooth (via app), Wi-Fi, 3.5mm mic jack |
Suitability by genre
| Genre | EOS R5 | A7S II |
|---|---|---|
| Portrait | ||
| Wildlife | — | |
| Vlogging & Video | ||
| Sports | ||
| Landscape | — | |
| Wedding | ||
| Low Light | — | |
| Street | — |
More comparisons with EOS R5
Camera family history