Upgrade Guide
Canon EOS R5 C→Canon EOS-1Ds
Is it worth upgrading? Spec analysis, key improvements, and our verdict.
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Situational
One clear hardware improvement over the EOS R5 C. Worth it if that specific upgrade aligns with what you shoot.
What's new in the EOS-1Ds
-
Battery life~500 shots per charge vs ~220 shots stills / unlimited video with fan
Unchanged or similar
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Resolution11MP (down from 45MP — optimised for low light)
-
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 R5 C | EOS-1Ds | |
|---|---|---|---|
| Portrait | -1.7 | ||
| Street | -1.3 | ||
| Travel | -2.1 | ||
| Wedding & Events | -1.8 | ||
| Vlogging & Video | — | ||
| Filmmaking | — | ||
| Documentary | -3.5 | ||
| Sports & Action | -2.2 | ||
| Landscape | -1.5 | ||
| Wildlife | -1.5 | ||
| Casual | -2.6 | ||
| Food | -3.6 | ||
| Macro | -2.4 | ||
| Architecture | -3.0 | ||
| Astrophotography | +0.6 |
Full spec comparison
| Spec | EOS R5 C | EOS-1Ds | |
|---|---|---|---|
| Price | £3,799 | £200 | |
| Released | 2022 | 2002 | ↓ |
| Sensor | 45MP full-frame CMOS — Cinema EOS colour science | 11.1MP full-frame CMOS | |
| Resolution | 45MP | 11MP | ↓ |
| Video | 8K RAW internal, 8K/30p, 4K/120p — Cinema RAW Light, C-Log2, C-Log3 | — | |
| Autofocus | Dual Pixel CMOS AF II — subject tracking with Intelligent AF | 45-point AF with 7 cross-type points | |
| Stabilisation | No IBIS (electronic IS for video; use IS lenses) | — | |
| Burst Rate | 12fps mechanical, 20fps electronic | 3fps continuous | ↓ |
| Battery Life | ~220 shots stills / unlimited video with fan | ~500 shots per charge | ↑ |
| Weight | 680g (body only) | 1270g (body only) | ↓ |
| Weather Sealed | Yes | Yes | |
| Viewfinder | EVF 0.76× 5.76M-dot OLED | OVF, 0.70× magnification, 100% coverage | |
| Screen | 3.0" fully articulating touchscreen, 2.1M dots | 2.0" fixed LCD | |
| Mount | Canon RF mount (full-frame) | Canon EF | |
| Memory Cards | Dual CFexpress Type B slots | CompactFlash Type I/II |
Compare side-by-side
⚖️ Compare these cameras
See EOS R5 C 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.
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