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Quick take: The EOS M100 has the highest resolution at 24MP; the EOS M100 is the most affordable.
Where the EOS-1D Mark IV wins
Where the EOS M100 wins
16 specs side by side·14 genres scored·UK prices from Wex Photo Video, Clifton Cameras, MPB, eBay and Amazon UK
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The EOS M100 is 48 mm narrower, 90 mm shorter, 45 mm slimmer and 878 g lighter than the EOS-1D Mark IV.
Drawn to scale from the makers' dimensions (W × H × D). Front shown, depth on the slanted edge.
EOS M100 — Casual & Everyday: The EOS M100 is Canon's most stripped-back EF-M camera — small, simple, and focused on making great photos easy. Dual Pixel AF, 24MP, and a tilting touchscreen are its strengths; no EVF, no IBIS, and no 4K are its compromises. A solid, affordable first mirrorless for casual photographers who want more than a smartphone.
| Specification | EOS-1D Mark IVCanon · 2009 | EOS M100Canon · 2017 |
|---|---|---|
| Price | £102 used | £102 usedBest |
| Sensor | 16.1MP APS-H CMOS | 24.2MP APS-C CMOS (Dual Pixel) |
| Resolution | 16.1MP | 24.2MPBest |
| Video | Full HD 1080p/30, 720p/60 | 1080p/60p |
| Autofocus | 45-point phase-detect (39 cross-type) via viewfinder; contrast AF with face detection in live view | Dual Pixel CMOS AF with face and subject detection |
| Stabilisation | No IBIS (lens-based stabilisation only) | — |
| Burst Rate | 10fpsBest | 6.1fps |
| Battery Life | ~1500 shots (CIPA)Best | ~295 shots (CIPA) |
| Weight | 1180g (body only) | 266g (body only)Best |
| Dimensions | 156 × 156.6 × 79.9mm | 108.2 × 67.1 × 35.1mm |
| Weather Sealed | Not weather sealed | Not weather sealed |
| Viewfinder | Optical pentaprism, 100% coverage, 0.76x | No viewfinder |
| Screen | 3.0" fixed LCD, 920k dots | 3.0" tilting touchscreen, 1.04M dots |
| Mount | Canon EF | Canon EF-M mount |
| Memory Cards | Dual slots: CompactFlash + SD | Single SD UHS-I slot |
| Connectivity | USB 2.0, mini HDMI, AV out, 3.5mm mic, PC sync, N3 remote, WFT system terminal | 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 →