Upgrade Guide

Canon EOS-1D X Mark III→Canon EOS R5 C

Is it worth upgrading? Spec analysis, key improvements, and our verdict.

You own

Canon

EOS-1D X Mark III

£3500

2020

→

Upgrade to

Canon

EOS R5 C

£3799 (+£299)

2022

✅

Strong upgrade

The EOS R5 C improves across 3 key areas at a reasonable price gap. Most EOS-1D X Mark III owners will notice the difference.

What's new in the EOS R5 C

Suitability by genre

Full spec comparison

Spec	EOS-1D X Mark III	EOS R5 C
Price	£3,500	£3,799
Released	2020	2022	↑
Sensor	20.1MP full-frame CMOS	45MP full-frame CMOS — Cinema EOS colour science
Resolution	20MP	45MP	↑
Video	5.5K RAW, 4K 60fps (crop), 4K 60fps (full-frame via firmware)	8K RAW internal, 8K/30p, 4K/120p — Cinema RAW Light, C-Log2, C-Log3
Autofocus	191-point all cross-type OVF AF; 525-point Dual Pixel CMOS AF (Live View)	Dual Pixel CMOS AF II — subject tracking with Intelligent AF
Stabilisation	—	5-axis IBIS — 8 stops (with IS lens)
Burst Rate	16fps mechanical, 20fps live view	12fps mechanical, 20fps electronic	↓
Battery Life	~2850 shots (CIPA)	~220 shots stills / unlimited video with fan	↓
Weight	1250g (body only)	680g body only	↑
Weather Sealed	Yes	Yes
Viewfinder	OVF 0.76× magnification, 100% coverage	EVF 0.76× 5.76M-dot OLED
Screen	3.2" fully articulating touchscreen, 4.15M dots	3.0" fully articulating touchscreen, 2.1M dots
Mount	Canon EF	Canon RF mount (full-frame)
Memory Cards	Dual CFexpress Type B slots	Dual CFexpress Type B slots

Compare side-by-side

See EOS-1D X Mark III and EOS R5 C next to each other with our interactive comparison tool.

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