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Quick take: The EOS M has the highest resolution at 18MP; the EOS M is the most affordable; only the EOS-1Ds is weather sealed.
15 specs side by side·13 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 M — Canon Mirrorless History & Ef-M Collectors: Canon's first mirrorless — a historic body that broke new ground with touch-AF and EF-M, but its sluggish contrast-detect system quickly became its Achilles heel.
| Specification | EOS-1DsCanon · 2002 | EOS MCanon · 2012 |
|---|---|---|
| Price | £200 | £80Best |
| Sensor | 11.1MP full-frame CMOS | 18MP APS-C CMOS |
| Resolution | 11.1MP | 18.0MPBest |
| Video | — | 1080p 30fps |
| Autofocus | 45-point AF with 7 cross-type points | Hybrid CMOS AF (phase + contrast), notoriously slow |
| Burst Rate | 3fps continuous | 4fpsBest |
| Battery Life | ~500 shots per chargeBest | ~230 shots (CIPA) |
| Weight | 1270g (body only) | 262g (body only)Best |
| Dimensions | 155.6 × 117.8 × 79.9mm | 108.6 × 66.5 × 32.3mm |
| Weather Sealed | YesBest | Not weather sealed |
| Viewfinder | OVF, 0.70× magnification, 100% coverage | No viewfinder |
| Screen | 2.0" fixed LCD | 3.0" fixed touchscreen, 1.04M dots |
| Mount | Canon EF | Canon EF-M mount |
| Memory Cards | CompactFlash Type I/II | 1× SD/SDHC/SDXC |
| Connectivity | USB 1.1, FireWire | USB 2.0 |
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 →