GFX 100Svs A7S
Fujifilm
GFX 100S (2021)
Starting from £3999 new
Best for Commercial, portrait & landscape photographers
View GFX 100S
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.
Astrophotography & Low-Light — A7S (2014): The original A7S pioneered the concept of a camera optimised entirely for low light. Its 12.2MP sensor has enormous photosites — extraordinary high-ISO performance that still holds up. Lacking IBIS and limited to 1080p internally (4K requires external recorder), it is a specialist tool. For astrophotography, event videography, or any scenario where light is genuinely scarce, it remains outstanding.
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 (2014)
- Astrophotographers
- Low-light event videographers
- Filmmakers needing clean high-ISO footage
Quick take: The gfx 100s has the highest resolution at 102mp; the a7s is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | GFX 100S (2021) | A7S (2014) |
|---|---|---|
| Price | £3,999 | £600 |
| Sensor | 102MP Medium Format BSI CMOS (43.8 × 32.9mm) | 12.2MP Full-Frame BSI CMOS |
| Resolution | 102.0MP | 12.2MP |
| Video | 4K/30p, FHD/120p | 1080p/60p internal, 4K via HDMI (external recorder) |
| Autofocus | Phase-detect hybrid AF, face/eye detection | Phase-detect / contrast-detect hybrid AF |
| Stabilisation | IBIS — up to 6 stops | None |
| Burst Rate | 5fps | 5fps |
| Battery Life | ~460 shots (CIPA) | ~370 shots (CIPA) |
| Weight | 900g (with battery and card) | 474g (with battery and card) |
| Dimensions | 150.0 × 104.2 × 87.2mm | 126.9 × 94.4 × 48.2mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF, 5.76M dots, 0.77× magnification | Electronic, 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 (full-frame E-mount) |
| Memory Cards | Single CFexpress Type B / SD UHS-II combo slot | Single SD / MemoryStick PRO Duo slot |
| Connectivity | USB-C, Wi-Fi, Bluetooth | Multi/Micro USB, Wi-Fi, NFC |
Suitability by genre
| Genre | GFX 100S | A7S |
|---|---|---|
| Portrait | ||
| Landscape | ||
| Architecture | — | |
| Travel | ||
| Sports & Action | ||
| Vlogging & Video | ||
| Astrophotography | — | |
| Street | — |
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