EOS RPvs GFX 50S IIvs A6400
Which should you buy?
Entry Full-Frame Stills Photography — EOS RP (2019): An affordable gateway into the RF system. The RP makes sense as a stepping stone camera — if you're committed to Canon RF glass, this is the cheapest full-frame body to buy those lenses for. Just manage expectations on video and battery life.
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 RP (2019)
- Canon users who want to start investing in RF glass affordably
- Stills photographers who shoot primarily in good light
- Anyone coming from a Canon DSLR wanting the RF system at low cost
- Travel photographers who prioritise compactness over video specs
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 eos rp is the most affordable; only the gfx 50s ii is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | EOS RP (2019) | GFX 50S II (2021) | A6400 (2019) |
|---|---|---|---|
| Price | £799 | £2,999 | £899 |
| Sensor | 26.2MP Full-Frame CMOS | 51.4MP Medium Format GFX 44×33mm BSI CMOS | 24.2MP APS-C Exmor CMOS BSI |
| Resolution | 26.2MP | 51.4MP | 24.2MP |
| Video | 4K/24p (with 1.7× crop), 1080p/60p | 4K/30p (cropped) | 4K/30p (6K oversampled, no crop), 1080p/120p slow-motion |
| Autofocus | Dual Pixel CMOS AF, 4779 manually selectable positions | 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 | 5fps mechanical | 3fps | 11fps mechanical, 8fps with AF tracking |
| Battery Life | ~250 shots (CIPA) — very limited | ~440 shots (CIPA) | ~410 shots (CIPA) |
| Weight | 485g (body, battery, card) | 900g body only | 403g (body, battery, card) |
| Dimensions | 132.5 × 85.0 × 70.0mm | 150.0 × 104.2 × 87.2mm | 120.0 × 66.9 × 59.7mm |
| Weather Sealed | No | Yes | No |
| Viewfinder | EVF, 2.36M dots, 0.70× magnification | EVF, 3.69M dots, 0.77× magnification | EVF, 2.36M dots, 0.70× magnification |
| Screen | 3.0" vari-angle touchscreen, 1.04M dots | 3.2" tilting touchscreen | 3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots |
| Mount | Canon RF-mount | Fujifilm G-mount (medium format) | Sony E-mount |
| Memory Cards | Single SD UHS-II | Dual SD UHS-II slots | Single SD UHS-I |
| Connectivity | USB-C, Wi-Fi, Bluetooth | USB-C, Bluetooth, Wi-Fi | Micro-USB, Wi-Fi, Bluetooth, NFC |
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