EOS R8vs GFX 50S IIvs A6400
Which should you buy?
Full-Frame Entry — EOS R8 (2023): Canon's most affordable full-frame mirrorless — 4K/60p 10-bit and class-leading Dual Pixel AF at an accessible entry price.
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.
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
EOS R8 (2023)
- You want full-frame image quality on a tight budget
- You shoot mainly in good light and can live without built-in stabilisation
- You primarily shoot stills with occasional video
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
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 is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | EOS R8 (2023) | GFX 50S II (2021) | A6400 (2019) |
|---|---|---|---|
| Price | £1,099 | £2,999 | £899 |
| Sensor | 24.2MP Full-frame BSI CMOS | 51.4MP Medium Format GFX 44×33mm BSI CMOS | 24.2MP APS-C Exmor CMOS BSI |
| Resolution | 24.2MP | 51.4MP | 24.2MP |
| Video | 4K/60p oversampled 10-bit, FHD/180p | 4K/30p (cropped) | 4K/30p (6K oversampled, no crop), 1080p/120p slow-motion |
| Autofocus | Dual Pixel CMOS AF II, 1053 zones, eye/face/subject tracking | Phase-detect, 425 points | Phase-detect, 425 points, real-time Eye AF & animal AF |
| Stabilisation | None (no IBIS) | 5-axis IBIS, 6.5 stops | None (no IBIS) |
| Burst Rate | 6fps mechanical, 40fps electronic | 3fps | 11fps mechanical, 8fps with AF tracking |
| Battery Life | ~220 shots (CIPA) | ~440 shots (CIPA) | ~410 shots (CIPA) |
| Weight | 461g body only | 900g body only | 403g (body, battery, card) |
| Dimensions | 132.5 × 86.1 × 70.0mm | 150.0 × 104.2 × 87.2mm | 120.0 × 66.9 × 59.7mm |
| Weather Sealed | No | Yes | No |
| Viewfinder | EVF, 2.36M dots, 0.59× | EVF, 3.69M dots, 0.77× magnification | EVF, 2.36M dots, 0.70× magnification |
| Screen | 3.0" fully articulating touchscreen | 3.2" tilting touchscreen | 3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots |
| Mount | Canon RF mount (full-frame) | Fujifilm G-mount (medium format) | Sony E-mount |
| Memory Cards | Single SD UHS-II slot | Dual SD UHS-II slots | Single SD UHS-I |
| Connectivity | USB-C, Bluetooth, Wi-Fi | USB-C, Bluetooth, Wi-Fi | Micro-USB, Wi-Fi, Bluetooth, NFC |
Compare pairs from this group