M10vs A7S II
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?
Street & Documentary — M10 (2017): The M10 returned Leica to its roots — thinner, cleaner, and video-free by design. The 24MP sensor is the perfect resolution for a manual-focus rangefinder. The simplified control layout respects the M tradition without digital clutter. A camera for photographers who want to slow down and engage with every frame. One of the most satisfying cameras to use — assuming you have M-mount glass to pair with it.
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
M10 (2017)
- Serious photographers who want to slow down
- Street and documentary photographers
- Leica M-mount lens owners
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 m10 has the highest resolution at 24mp; the a7s ii is the most affordable; only the a7s ii is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | M10 (2017) | A7S II (2015) |
|---|---|---|
| Price | £4,000 | £799 |
| Sensor | 24MP Full-Frame CMOS | 12.1MP full-frame BSI Exmor CMOS |
| Resolution | 24.0MP | 12.1MP |
| Video | — | 4K/30p internal (full sensor readout), 1080p/120p, S-Log2/S-Log3 |
| Autofocus | Manual focus (rangefinder coupled) | 169 phase-detect + 25 contrast AF — limited by modern standards |
| Stabilisation | None | 5-axis IBIS — 4.5 stops (first Sony mirrorless with IBIS) |
| Burst Rate | 5fps | 5fps continuous |
| Battery Life | ~220 shots (CIPA) | ~370 shots (CIPA) |
| Weight | 660g (with battery) | 584g body only |
| Dimensions | 139 × 80 × 38.5mm | 126.9 × 95.7 × 60.3mm |
| Weather Sealed | No | Yes |
| Viewfinder | Optical rangefinder, 0.73× magnification | EVF, 2.36M dots, 0.71× magnification |
| Screen | 3.0" fixed LCD, 1.04M dots | 3.0" tilting LCD, 1.23M dots |
| Mount | Leica M-mount | Sony FE mount (full-frame E-mount) |
| Memory Cards | Single SD UHS-I slot | Dual SD UHS-I slots |
| Connectivity | USB 2.0, Wi-Fi | USB Micro-B, Bluetooth (via app), Wi-Fi, 3.5mm mic jack |
Suitability by genre
| Genre | M10 | A7S II |
|---|---|---|
| Street | ||
| Portrait | ||
| Travel | — | |
| Landscape | — | |
| Astrophotography | — | |
| Vlogging & Video | ||
| Sports & Action | — | |
| Wildlife | — | |
| Low Light | — | |
| Wedding | — | |
| Sports | — |
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