EOS R7vs Z6 IIIvs A6400
Which should you buy?
Wildlife, Sports & Action — EOS R7 (2022): The EOS R7 is one of the most complete APS-C cameras ever made. It combines a class-leading resolution sensor with best-in-class IBIS, 4K/60p video, weather sealing and 15fps burst. For wildlife, sports and action photographers on an APS-C budget, nothing else comes close.
Hybrid Video & Action — Z6 III (2024): Partial-stacked FF sensor for near-zero blackout, 6K RAW video, and 60fps burst — Nikon's most capable hybrid.
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 R7 (2022)
- Wildlife photographers who need reach, weather sealing and fast burst
- Sports shooters upgrading from entry-level APS-C bodies
- Video creators who need uncropped 4K/60p without a full-frame budget
- Canon DSLR users looking to move to RF mount
Z6 III (2024)
- You need the best all-round full-frame camera in Nikon's Z system
- You shoot in challenging or low light and need exceptional high-ISO performance
- You want a hybrid body that genuinely excels at both professional stills and video
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 eos r7 has the highest resolution at 32mp; the a6400 is the most affordable; only the eos r7, z6 iii are weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | EOS R7 (2022) | Z6 III (2024) | A6400 (2019) |
|---|---|---|---|
| Price | £1,399 | £2,199 | £899 |
| Sensor | 32.5MP APS-C CMOS | 24.5MP Full-frame Partial-stacked CMOS | 24.2MP APS-C Exmor CMOS BSI |
| Resolution | 32.5MP | 24.5MP | 24.2MP |
| Video | 4K/60p (uncropped), 4K/30p (oversampled from 7K), 1080p/120p | 6K/60p RAW, 4K/120p, 4K/60p oversampled, N-Log, 10-bit | 4K/30p (6K oversampled, no crop), 1080p/120p slow-motion |
| Autofocus | Dual Pixel CMOS AF II, 651 AF zones, subject recognition (people, animals, vehicles) | Phase-detect, 273 points, subject detection (human/animal/vehicle/aircraft) | Phase-detect, 425 points, real-time Eye AF & animal AF |
| Stabilisation | 7-stop IBIS (8 stops with compatible IS lenses) | 5-axis IBIS, 6.0 stops | None (no IBIS) |
| Burst Rate | 15fps mechanical, 30fps electronic (with blackout) | 20fps mechanical, 60fps electronic | 11fps mechanical, 8fps with AF tracking |
| Battery Life | ~770 shots (CIPA) | ~380 shots (CIPA) | ~410 shots (CIPA) |
| Weight | 612g (body, battery, card) | 760g body only | 403g (body, battery, card) |
| Dimensions | 132.0 × 90.4 × 91.7mm | 138.5 × 101.5 × 74.0mm | 120.0 × 66.9 × 59.7mm |
| Weather Sealed | Yes | Yes | No |
| Viewfinder | EVF, 2.36M dots, 0.72× magnification | EVF, 5.76M dots, 0.90× magnification | EVF, 2.36M dots, 0.70× magnification |
| Screen | 3.0" vari-angle touchscreen, 1.62M dots | 3.2" fully articulating touchscreen | 3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots |
| Mount | Canon RF-mount | Nikon Z-mount (full-frame) | Sony E-mount |
| Memory Cards | Dual SD UHS-II | Dual slots: CFexpress Type B + SD UHS-II | Single SD UHS-I |
| Connectivity | USB-C (USB 3.2 Gen 2), Wi-Fi, Bluetooth | USB-C 3.2, Bluetooth, Wi-Fi | Micro-USB, Wi-Fi, Bluetooth, NFC |
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