Upgrade Guide
Canon EOS-1D Mark III→Canon EOS M100
Is it worth upgrading? Spec analysis, key improvements, and our verdict.
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Worthwhile
Clear improvements over the EOS-1D Mark III. Whether it justifies the cost depends on which upgrades matter most to your shooting.
What's new in the EOS M100
-
Resolution24MP vs 10MP (+14MP)
-
Generation10 years newer (2017 vs 2007)
Unchanged or similar
-
StabilisationIBIS not present in new body
Suitability by genre
Base scores — computed from verified specs for an enthusiast shooting photo and video. The Upgrade Checker adjusts them for your skill level.
| Genre | EOS-1D Mark III | EOS M100 | |
|---|---|---|---|
| Portrait | -0.2 | ||
| Street | +2.9 | ||
| Travel | +2.8 | ||
| Wedding & Events | -2.3 | ||
| Documentary | +1.1 | ||
| Sports & Action | -1.8 | ||
| Landscape | +1.5 | ||
| Wildlife | -1.3 | ||
| Casual | +3.6 | ||
| Food | +2.6 | ||
| Macro | +1.5 | ||
| Architecture | +0.9 | ||
| Astrophotography | -1.3 | ||
| Vlogging & Video | — |
Full spec comparison
| Spec | EOS-1D Mark III | EOS M100 | |
|---|---|---|---|
| Price | £102 used | £102 used | |
| Released | 2007 | 2017 | ↑ |
| Sensor | 10.1MP APS-H CMOS | 24.2MP APS-C CMOS (Dual Pixel) | |
| Resolution | 10MP | 24MP | ↑ |
| Video | No video | 1080p/60p | |
| Autofocus | 45-point phase-detect (19 cross-type + 26 assist) via viewfinder | Dual Pixel CMOS AF with face and subject detection | |
| Stabilisation | No IBIS (lens-based stabilisation only) | — | |
| Burst Rate | 10fps | 6.1fps | ↓ |
| Battery Life | ~2200 shots (CIPA) | ~295 shots (CIPA) | ↓ |
| Weight | 1155g (body only) | 266g (body only) | ↑ |
| Weather Sealed | Not weather sealed | Not weather sealed | |
| Viewfinder | Optical pentaprism, 100% coverage, 0.76x | No viewfinder | |
| Screen | 3.0" fixed LCD, 230k 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 |
Compare side-by-side
⚖️ Compare these cameras
See EOS-1D Mark III and EOS M100 next to each other with our interactive comparison tool.
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Tell us what you shoot and we'll score the EOS M100 against your specific genres — not just specs.
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