GFX 50S IIvs Lumix GH6vs A6400
Which should you buy?
Studio & Portrait Specialists — GFX 50S II (2021): Medium format quality at the most accessible price ever — 51MP detail and tonal richness no APS-C or full-frame body can replicate.
Video Creators & Documentary Filmmakers — Lumix GH6 (2022): The video-first MFT camera — 5.7K internal, unlimited record times, and 10-bit colour for professional video production.
Content Creation & Vlogging — A6400 (2019): The best value APS-C Sony you can buy — especially used. Real-time Eye AF at this price point was transformative when it launched and still makes it one of the most reliable autofocus systems in the lineup.
Who should buy what
GFX 50S II (2021)
- You want to experience medium format without a five-figure investment
- You shoot landscape, architecture, or portraits where resolution and tonal depth matter
- You're in the Fujifilm ecosystem and want to step up to a larger sensor
Lumix GH6 (2022)
- You're a video producer or documentary filmmaker who prioritises codec quality and recording flexibility
- You need unlimited recording times without overheating concerns
- You want professional video specifications at a price that makes commercial sense
A6400 (2019)
- Vloggers and content creators who need a flip screen and reliable AF
- Photographers upgrading from a compact or smartphone
- Beginners who want room to grow into a full E-mount lens ecosystem
- Anyone prioritising autofocus performance at an accessible price
Quick take: The gfx 50s ii has the highest resolution at 51mp; the a6400 is the most affordable; only the gfx 50s ii, lumix gh6 are weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | GFX 50S II (2021) | Lumix GH6 (2022) | A6400 (2019) |
|---|---|---|---|
| Price | £2,999 | £1,199 | £899 |
| Sensor | 51.4MP Medium Format GFX 44×33mm BSI CMOS | 25.2MP Micro Four Thirds Live MOS | 24.2MP APS-C Exmor CMOS BSI |
| Resolution | 51.4MP | 25.2MP | 24.2MP |
| Video | 4K/30p (cropped) | 5.7K/60p, 4K/120p 10-bit, Cinema 4K, V-Log | 4K/30p (6K oversampled, no crop), 1080p/120p slow-motion |
| Autofocus | Phase-detect, 425 points | Contrast-detect AF with subject detection | Phase-detect, 425 points, real-time Eye AF & animal AF |
| Stabilisation | 5-axis IBIS, 6.5 stops | 7.5-stop IBIS | None (no IBIS) |
| Burst Rate | 3fps | 14fps | 11fps mechanical, 8fps with AF tracking |
| Battery Life | ~440 shots (CIPA) | 560 shots (CIPA) | ~410 shots (CIPA) |
| Weight | 900g body only | 739g body only | 403g (body, battery, card) |
| Dimensions | 150.0 × 104.2 × 87.2mm | 138.4 × 100.3 × 99.6mm | 120.0 × 66.9 × 59.7mm |
| Weather Sealed | Yes | Yes | No |
| Viewfinder | EVF, 3.69M dots, 0.77× magnification | 0.76" OLED EVF, 3.68M dots | EVF, 2.36M dots, 0.70× magnification |
| Screen | 3.2" tilting touchscreen | 3.0" fully articulating touchscreen | 3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots |
| Mount | Fujifilm G-mount (medium format) | Micro Four Thirds | Sony E-mount |
| Memory Cards | Dual SD UHS-II slots | Dual SD UHS-II | Single SD UHS-I |
| Connectivity | USB-C, Bluetooth, Wi-Fi | USB-C 3.1, HDMI full-size, Wi-Fi, Bluetooth | Micro-USB, Wi-Fi, Bluetooth, NFC |
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