EOS-1D X Mark IIIvs A6400
Canon
EOS-1D X Mark III (2020)
Starting from £3500 new
Best for Professional Sports, Wildlife & Press Photography
View EOS-1D X Mark III
GearScore™ Verdict — Which should you buy?
Professional Sports, Wildlife & Press Photography — EOS-1D X Mark III (2020): Canon's DSLR masterpiece — 20fps live view, 5.5K RAW, 191 cross-type AF points, and dual CFexpress. Almost certainly the finest optical viewfinder camera ever made.
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-1D X Mark III (2020)
- Sports and wildlife photographers with a Canon EF lens collection
- Professionals who prefer the optical viewfinder experience
- Press photographers who need 20fps, weather sealing, and Ethernet
- Canon historians who want to mark the end of the EOS-1D DSLR era
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 a6400 has the highest resolution at 24mp; the a6400 is the most affordable; only the eos-1d x mark iii is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | EOS-1D X Mark III (2020) | A6400 (2019) |
|---|---|---|
| Price | £3,500 | £899 |
| Sensor | 20.1MP full-frame CMOS | 24.2MP APS-C Exmor CMOS BSI |
| Resolution | 20.1MP | 24.2MP |
| Video | 5.5K RAW, 4K 60fps (crop), 4K 60fps (full-frame via firmware) | 4K/30p (6K oversampled, no crop), 1080p/120p slow-motion |
| Autofocus | 191-point all cross-type OVF AF; 525-point Dual Pixel CMOS AF (Live View) | Phase-detect, 425 points, real-time Eye AF & animal AF |
| Stabilisation | — | None (no IBIS) |
| Burst Rate | 16fps mechanical, 20fps live view | 11fps mechanical, 8fps with AF tracking |
| Battery Life | ~2850 shots (CIPA) | ~410 shots (CIPA) |
| Weight | 1250g (body only) | 403g (body, battery, card) |
| Dimensions | 158 × 167.6 × 82.6mm | 120.0 × 66.9 × 59.7mm |
| Weather Sealed | Yes | No |
| Viewfinder | OVF 0.76× magnification, 100% coverage | EVF, 2.36M dots, 0.70× magnification |
| Screen | 3.2" fully articulating touchscreen, 4.15M dots | 3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots |
| Mount | Canon EF | Sony E-mount |
| Memory Cards | Dual CFexpress Type B slots | Single SD UHS-I |
| Connectivity | Wi-Fi 5GHz, Bluetooth 4.2, USB-C 3.1 Gen 2, Ethernet | Micro-USB, Wi-Fi, Bluetooth, NFC |
Suitability by genre
| Genre | EOS-1D X Mark III | A6400 |
|---|---|---|
| Sports & Action | — | |
| Wildlife | ||
| Wedding & Events | — | |
| Portrait | ||
| Vlogging & Video | — | |
| Street | ||
| Landscape | — | |
| Video | — | |
| Travel | — |
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