X-T3vs A7S II
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?
Video, Street, Travel, Portrait — X-T3 (2018): The camera that proved APS-C could punch above full-frame on video.
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
X-T3 (2018)
- Hybrid shooters who want 4K 60fps 10-bit without full-frame prices
- Street photographers who want physical dials and compact size
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 x-t3 has the highest resolution at 26mp; the x-t3 is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | X-T3 (2018) | A7S II (2015) |
|---|---|---|
| Price | £649 | £799 |
| Sensor | APS-C X-Trans CMOS 4 BSI | 12.1MP full-frame BSI Exmor CMOS |
| Resolution | 26.1MP | 12.1MP |
| Video | 4K 60fps 10-bit (internal) | 4K/30p internal (full sensor readout), 1080p/120p, S-Log2/S-Log3 |
| Autofocus | 425-point phase-detect intelligent hybrid AF | 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 | 11fps mechanical, 20fps electronic | 5fps continuous |
| Battery Life | 390 shots (CIPA) | ~370 shots (CIPA) |
| Weight | 539g (body only) | 584g body only |
| Dimensions | 132.5 × 92.8 × 58.8mm | 126.9 × 95.7 × 60.3mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF 0.75× 3.69M-dot | EVF, 2.36M dots, 0.71× magnification |
| Screen | 3.0" tilting touchscreen, 1.04M-dot | 3.0" tilting LCD, 1.23M dots |
| Mount | Fujifilm X-Mount | Sony FE mount (full-frame E-mount) |
| Memory Cards | 2× SD UHS-II | Dual SD UHS-I slots |
| Connectivity | Wi-Fi, Bluetooth 4.2, USB-C 3.1, Micro HDMI | USB Micro-B, Bluetooth (via app), Wi-Fi, 3.5mm mic jack |
Suitability by genre
| Genre | X-T3 | A7S II |
|---|---|---|
| Vlogging & Video | — | |
| Low Light | — | |
| Wedding | — | |
| Portrait | — | |
| Street | — | |
| Sports | — |
More comparisons with X-T3
Camera family history