GFX 100Svs A7S II
Fujifilm
GFX 100S (2021)
Starting from £3999 new
Best for Commercial, portrait & landscape photographers
View GFX 100S
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?
Commercial, Portrait & Landscape Photographers — GFX 100S (2021): 102MP medium-format with IBIS and phase-detect AF at a price that made serious large-format imaging available to a new generation of photographers.
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
GFX 100S (2021)
- Portrait and commercial photographers who need extraordinary resolution and rendering
- Landscape photographers who want the finest large-format detail in a manageable body
- GFX 50S II users who want to double their resolution with improved AF
- Studio photographers moving up from full-frame who want medium-format colour science
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 gfx 100s has the highest resolution at 102mp; the a7s ii is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | GFX 100S (2021) | A7S II (2015) |
|---|---|---|
| Price | £3,999 | £799 |
| Sensor | 102MP Medium Format BSI CMOS (43.8 × 32.9mm) | 12.1MP full-frame BSI Exmor CMOS |
| Resolution | 102.0MP | 12.1MP |
| Video | 4K/30p, FHD/120p | 4K/30p internal (full sensor readout), 1080p/120p, S-Log2/S-Log3 |
| Autofocus | Phase-detect hybrid AF, face/eye detection | 169 phase-detect + 25 contrast AF — limited by modern standards |
| Stabilisation | IBIS — up to 6 stops | 5-axis IBIS — 4.5 stops (first Sony mirrorless with IBIS) |
| Burst Rate | 5fps | 5fps continuous |
| Battery Life | ~460 shots (CIPA) | ~370 shots (CIPA) |
| Weight | 900g (with battery and card) | 584g body only |
| Dimensions | 150.0 × 104.2 × 87.2mm | 126.9 × 95.7 × 60.3mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF, 5.76M dots, 0.77× magnification | EVF, 2.36M dots, 0.71× magnification |
| Screen | 3.0" 3-direction tilting touchscreen | 3.0" tilting LCD, 1.23M dots |
| Mount | Fujifilm GFX (G-mount) | Sony FE mount (full-frame E-mount) |
| Memory Cards | Single CFexpress Type B / SD UHS-II combo slot | Dual SD UHS-I slots |
| Connectivity | USB-C, Wi-Fi, Bluetooth | USB Micro-B, Bluetooth (via app), Wi-Fi, 3.5mm mic jack |
Suitability by genre
| Genre | GFX 100S | A7S II |
|---|---|---|
| Portrait | ||
| Landscape | — | |
| Architecture | — | |
| Travel | — | |
| Sports & Action | — | |
| Vlogging & Video | ||
| Low Light | — | |
| Wedding | — | |
| Street | — | |
| Sports | — |
GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →
More comparisons with GFX 100S
Camera family history