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Quick take: The A6400 has the highest resolution at 24MP; the EOS-1Ds is the most affordable.
16 specs side by side·15 genres scored·UK prices from Wex Photo Video and Clifton Cameras
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EOS-1Ds — Full-Frame Dslr History & Canon Archive Collections: The world's first production full-frame DSLR — the EOS-1Ds arrived in 2002 with 11MP and changed professional photography forever. Historically irreplaceable.
A6400 — Content Creation & Vlogging: 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.
| Specification | EOS-1DsCanon · 2002 | A6400Sony · 2019 |
|---|---|---|
| Price | £200Best | £749 |
| Sensor | 11.1MP full-frame CMOS | 24.2MP APS-C Exmor CMOS BSI |
| Resolution | 11.1MP | 24.2MPBest |
| Video | — | 4K/30p (6K oversampled, no crop), 1080p/120p slow-motion |
| Autofocus | 45-point AF with 7 cross-type points | Phase-detect, 425 points, real-time Eye AF & animal AF |
| Stabilisation | — | No stabilisation |
| Burst Rate | 3fps continuous | 11fps mechanical, 8fps with AF trackingBest |
| Battery Life | ~500 shots per chargeBest | ~410 shots (CIPA) |
| Weight | 1270g (body only) | 403g (with battery and card)Best |
| Dimensions | 155.6 × 117.8 × 79.9mm | 120.0 × 66.9 × 59.7mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | OVF, 0.70× magnification, 100% coverage | EVF, 2.36M dots, 0.70× magnification |
| Screen | 2.0" fixed LCD | 3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots |
| Mount | Canon EF | Sony E-mount |
| Memory Cards | CompactFlash Type I/II | Single SD UHS-I |
| Connectivity | USB 1.1, FireWire | Micro-USB, Wi-Fi, Bluetooth, NFC |
Wins the row — price, resolution, burst, battery, weight and sealing are compared; text specs aren't ranked.
Scores come from the same engine as Camera Match: verified specifications weighted by what each genre needs, with documented adjustments. The product page and this table show the enthusiast base score. See how scores are calculated →