Upgrade Guide
Canon Canon EOS R3→Canon EOS M
Is it worth upgrading? Spec analysis, key improvements, and our verdict.
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The EOS M offers little measurable spec improvement over the Canon EOS R3. Spend the money on glass instead.
Unchanged or similar
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Resolution18MP (down from 24MP — optimised for low light)
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Weather sealingNot present in new body
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StabilisationIBIS not present in new body
Suitability by genre
| Genre | Canon EOS R3 | EOS M | |
|---|---|---|---|
| Sports & Action | — | ||
| Wildlife | — | ||
| Photojournalism | — | ||
| Vlogging & Video | -2.0 | ||
| Wedding & Events | — | ||
| Travel | +2.0 | ||
| Casual | — | ||
| Street | — | ||
| Portrait | — |
Full spec comparison
| Spec | Canon EOS R3 | EOS M | |
|---|---|---|---|
| Price | £5,999 | £80 | |
| Released | 2021 | 2012 | ↓ |
| Sensor | 24.1MP full-frame BSI stacked CMOS | 18MP APS-C CMOS | |
| Resolution | 24MP | 18MP | ↓ |
| Video | 6K RAW, 4K/120p, 1080p/180p | 1080p 30fps | |
| Autofocus | Dual Pixel CMOS AF II with Eye Control AF | Contrast-detect AF only — notoriously slow | |
| Stabilisation | 8-stop IBIS | — | |
| Burst Rate | 30fps electronic / 12fps mechanical | 4fps | ↓ |
| Battery Life | 620 shots (CIPA) | ~230 shots (CIPA) | ↓ |
| Weight | 1015g body only | 262g (body only) | ↑ |
| Weather Sealed | Yes | No | ↓ |
| Viewfinder | 0.76" OLED EVF, 5.76M dots, 120fps | None (optional EVF accessory) | |
| Screen | 3.2" fully articulating touchscreen | 3.0" fixed touchscreen, 1.04M dots | |
| Mount | Canon RF | Canon EF-M mount | |
| Memory Cards | Dual CFexpress Type B | 1× SD/SDHC/SDXC |
Compare side-by-side
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