EOS Mvs A7R IV
Canon
EOS M (2012)
Starting from £80 new
Best for Canon mirrorless history & EF-M collectors
View EOS M
GearScore™ Verdict — Which should you buy?
Canon Mirrorless History & Ef-M Collectors — EOS M (2012): Canon's first mirrorless — a historic body that broke new ground with touch-AF and EF-M, but its sluggish contrast-detect system quickly became its Achilles heel.
Landscape, Studio, Commercial — A7R IV (2019): 61MP in a mirrorless body — the resolution benchmark.
Who should buy what
EOS M (2012)
- Canon shooters who want the camera that started Canon's mirrorless story
- Budget first-time mirrorless buyers who already own EF/EF-S glass
- Collectors of significant digital camera milestones
A7R IV (2019)
- Landscape photographers who print large
- Studio shooters needing maximum detail
Quick take: The a7r iv has the highest resolution at 61mp; the eos m is the most affordable; only the a7r iv is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | EOS M (2012) | A7R IV (2019) |
|---|---|---|
| Price | £80 | £2,199 |
| Sensor | 18MP APS-C CMOS | Full-frame BSI Exmor R CMOS 35mm |
| Resolution | 18.0MP | 61.0MP |
| Video | 1080p 30fps | 4K 30fps |
| Autofocus | Contrast-detect AF only — notoriously slow | 567-point phase-detect, real-time tracking |
| Stabilisation | — | 5-axis IBIS, 5.5 stops |
| Burst Rate | 4fps | 10fps |
| Battery Life | ~230 shots (CIPA) | 670 shots (CIPA) |
| Weight | 262g (body only) | 665g (body only) |
| Dimensions | 108.6 × 66.5 × 32.3mm | 128.9 × 96.4 × 77.5mm |
| Weather Sealed | No | Yes |
| Viewfinder | None (optional EVF accessory) | EVF 0.78× 5.76M-dot |
| Screen | 3.0" fixed touchscreen, 1.04M dots | 3.0" tilting touchscreen, 1.44M-dot |
| Mount | Canon EF-M mount | Sony E-Mount |
| Memory Cards | 1× SD/SDHC/SDXC | 2× SD UHS-II / CFexpress Type A |
| Connectivity | USB 2.0 | Wi-Fi 5GHz, Bluetooth 4.1, USB-C 3.2 |
Suitability by genre
| Genre | EOS M | A7R IV |
|---|---|---|
| Casual | — | |
| Travel | ||
| Street | ||
| Portrait | ||
| Vlogging & Video | ||
| Landscape | — | |
| Architecture | — | |
| Wedding & Events | — | |
| Wildlife | — |
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