Upgrade Guide
Canon EOS M3→Canon EOS-1Ds
Is it worth upgrading? Spec analysis, key improvements, and our verdict.
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Worthwhile
Clear improvements over the EOS M3. Whether it justifies the cost depends on which upgrades matter most to your shooting.
What's new in the EOS-1Ds
-
Weather sealingAdded — fully sealed body
-
Battery life~500 shots per charge vs ~250 shots (CIPA)
Unchanged or similar
-
Resolution11MP (down from 24MP — optimised for low light)
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 M3 | EOS-1Ds | |
|---|---|---|---|
| Portrait | -0.5 | ||
| Street | -3.3 | ||
| Travel | -2.7 | ||
| Wedding & Events | +0.5 | ||
| Vlogging & Video | — | ||
| Documentary | -0.7 | ||
| Sports & Action | +0.2 | ||
| Landscape | -0.5 | ||
| Wildlife | +0.6 | ||
| Casual | -2.8 | ||
| Food | -2.0 | ||
| Macro | -1.3 | ||
| Architecture | -0.7 | ||
| Astrophotography | +1.6 |
Full spec comparison
| Spec | EOS M3 | EOS-1Ds | |
|---|---|---|---|
| Price | £150 | £200 | |
| Released | 2015 | 2002 | ↓ |
| Sensor | 24.2MP APS-C CMOS | 11.1MP full-frame CMOS | |
| Resolution | 24MP | 11MP | ↓ |
| Video | 1080p/30p | — | |
| Autofocus | Hybrid CMOS AF III (phase-detect + contrast-detect) | 45-point AF with 7 cross-type points | |
| Burst Rate | 4.2fps | 3fps continuous | ↓ |
| Battery Life | ~250 shots (CIPA) | ~500 shots per charge | ↑ |
| Weight | 366g (body only) | 1270g (body only) | ↓ |
| Weather Sealed | Not weather sealed | Yes | ↑ |
| Viewfinder | None (optional EVF-DC1 accessory) | OVF, 0.70× magnification, 100% coverage | |
| Screen | 3.0" tilting touchscreen, 1.04M dots | 2.0" fixed LCD | |
| Mount | Canon EF-M mount | Canon EF | |
| Memory Cards | Single SD UHS-I slot | CompactFlash Type I/II |
Compare side-by-side
⚖️ Compare these cameras
See EOS M3 and EOS-1Ds next to each other with our interactive comparison tool.
Get a personalised upgrade score
Run the upgrade checker →
Tell us what you shoot and we'll score the EOS-1Ds against your specific genres — not just specs.
Other upgrades from the EOS M3
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Camera family history