Upgrade Guide
Canon EOS-1D X Mark III→Canon EOS M
Is it worth upgrading? Spec analysis, key improvements, and our verdict.
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Skip it
The EOS M offers little measurable spec improvement over the EOS-1D X Mark III. Spend the money on glass instead.
Unchanged or similar
-
ResolutionSimilar (18MP)
-
Weather sealingNot present in new body
Suitability by genre
| Genre | EOS-1D X Mark III | EOS M | |
|---|---|---|---|
| Sports & Action | — | ||
| Wildlife | — | ||
| Wedding & Events | — | ||
| Portrait | -2.0 | ||
| Vlogging & Video | -2.0 | ||
| Street | -1.0 | ||
| Landscape | — | ||
| Casual | — | ||
| Travel | — |
Full spec comparison
| Spec | EOS-1D X Mark III | EOS M | |
|---|---|---|---|
| Price | £3,500 | £80 | |
| Released | 2020 | 2012 | ↓ |
| Sensor | 20.1MP full-frame CMOS | 18MP APS-C CMOS | |
| Resolution | 20MP | 18MP | ↓ |
| Video | 5.5K RAW, 4K 60fps (crop), 4K 60fps (full-frame via firmware) | 1080p 30fps | |
| Autofocus | 191-point all cross-type OVF AF; 525-point Dual Pixel CMOS AF (Live View) | Contrast-detect AF only — notoriously slow | |
| Burst Rate | 16fps mechanical, 20fps live view | 4fps | ↓ |
| Battery Life | ~2850 shots (CIPA) | ~230 shots (CIPA) | ↓ |
| Weight | 1250g (body only) | 262g (body only) | ↑ |
| Weather Sealed | Yes | No | ↓ |
| Viewfinder | OVF 0.76× magnification, 100% coverage | None (optional EVF accessory) | |
| Screen | 3.2" fully articulating touchscreen, 4.15M dots | 3.0" fixed touchscreen, 1.04M dots | |
| Mount | Canon EF | Canon EF-M mount | |
| Memory Cards | Dual CFexpress Type B slots | 1× SD/SDHC/SDXC |
Compare side-by-side
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