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Quick take: The EOS M3 has the highest resolution at 24MP; only the EOS-1D is weather sealed.
15 specs side by side·14 genres scored·UK prices from Wex Photo Video and Clifton Cameras
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EOS-1D — Professional Digital Camera History Collectors: Canon's first pro digital DSLR — a 4MP, 8fps APS-H monster from 2001 that set the template for every 1D to follow. A landmark piece of digital camera history.
EOS M3 — Casual & Everyday: The EOS M3 was a meaningful upgrade over the original EOS M — bringing 24MP, a tilting touchscreen, and improved Hybrid CMOS AF III. Video tops out at 1080p/30p and burst shooting is modest, but for stills photographers wanting affordable APS-C quality, the M3 is a competent used-market option.
| Specification | EOS-1DCanon · 2001 | EOS M3Canon · 2015 |
|---|---|---|
| Price | £150Best | £150Best |
| Sensor | 4.1MP APS-H CMOS (1.3× crop) | 24.2MP APS-C CMOS |
| Resolution | 4.1MP | 24.2MPBest |
| Video | — | 1080p/30p |
| Autofocus | 45-point AF with 7 cross-type points | Hybrid CMOS AF III (phase-detect + contrast-detect) |
| Burst Rate | 8fps continuous (up to 21 RAW frames)Best | 4.2fps |
| Battery Life | ~1200 shots per chargeBest | ~250 shots (CIPA) |
| Weight | 1225g (body only) | 366g (body only)Best |
| Dimensions | 155.6 × 117.8 × 77.5mm | 110.9 × 68.0 × 44.4mm |
| Weather Sealed | YesBest | Not weather sealed |
| Viewfinder | OVF, 0.72× magnification, 100% coverage | None (optional EVF-DC1 accessory) |
| Screen | 2.0" fixed LCD | 3.0" tilting touchscreen, 1.04M dots |
| Mount | Canon EF | Canon EF-M mount |
| Memory Cards | CompactFlash Type I/II | Single SD UHS-I slot |
| Connectivity | USB 1.1, FireWire | USB, Wi-Fi, 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 →