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Quick take: The EOS R6 Mark III has the highest resolution at 32MP; 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.
EOS R6 Mark III — Hybrid Photo & Video Professionals, Sports And Wildlife Shooters: The EOS R6 Mark III takes everything that made the Mark II a hybrid favourite and pushes it further — a faster stacked sensor, smarter autofocus, and genuinely professional video specs. It's the most complete all-rounder in Canon's RF full-frame lineup, sitting just below the R5 II in resolution while matching it for speed.
| Specification | EOS-1DsCanon · 2002 | EOS R6 Mark IIICanon · 2025 |
|---|---|---|
| Price | £200Best | £2,799 |
| Sensor | 11.1MP full-frame CMOS | 32.5MP full-frame stacked CMOS |
| Resolution | 11.1MP | 32.5MPBest |
| Video | — | 4K 60fps oversampled from 7K, 6K RAW internal |
| Autofocus | 45-point AF with 7 cross-type points | Dual Pixel CMOS AF II — deep-learning subject detection for people, animals and vehicles, up to 40fps tracking |
| Stabilisation | — | In-body 5-axis IS, up to 8.5 stops |
| Burst Rate | 3fps continuous | 40fps (electronic shutter), 12fps (mechanical)Best |
| Battery Life | ~500 shots per charge | ~580 shots (CIPA, LP-E6P)Best |
| Weight | 1270g (body only) | 609g (body only)Best |
| Dimensions | 155.6 × 117.8 × 79.9mm | 138.4 × 98.4 × 88.4mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | OVF, 0.70× magnification, 100% coverage | EVF, 5.76M-dot, up to 120fps |
| Screen | 2.0" fixed LCD | 3.2-inch vari-angle touchscreen, 2.1M-dot |
| Mount | Canon EF | Canon RF |
| Memory Cards | CompactFlash Type I/II | Dual SD / SDHC / SDXC (UHS-II) |
| Connectivity | USB 1.1, FireWire | USB-C, Wi-Fi 6, Bluetooth 5.0, 2.5GbE |
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 →