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EOS-1D X Mark IIIvs EOS Mvs EOS R5 C

GearFrame · Updated March 2026

Canon EOS-1D X Mark III Canon EOS-1D X Mark III (2020) Starting from £3500 new Best for Professional Sports, Wildlife & Press Photography View EOS-1D X Mark III
VS
Canon EOS M Canon EOS M (2012) Starting from £80 new Best for Canon mirrorless history & EF-M collectors View EOS M
VS
Canon EOS R5 C Canon EOS R5 C (2022) Starting from £3799 new Best for Professional video, documentary & hybrid commercial work View EOS R5 C

GearScore™ Verdict — Which should you buy?

Professional Sports, Wildlife & Press Photography — EOS-1D X Mark III (2020): Canon's DSLR masterpiece — 20fps live view, 5.5K RAW, 191 cross-type AF points, and dual CFexpress. Almost certainly the finest optical viewfinder camera ever made.

Canon Mirrorless History & Ef-M Collectors — EOS M (2012): Canon's first mirrorless — a historic body that broke new ground with touch-AF and EF-M, but its sluggish contrast-detect system quickly became its Achilles heel.

Professional Video, Documentary & Hybrid Commercial Work — EOS R5 C (2022): Canon's R5 reborn for cinema — 8K RAW unlimited, Cinema EOS colour science, and 45MP stills in a weather-sealed body.

↓ Full specifications below

EOS-1D X Mark III (2020)

  • Sports and wildlife photographers with a Canon EF lens collection
  • Professionals who prefer the optical viewfinder experience
  • Press photographers who need 20fps, weather sealing, and Ethernet
  • Canon historians who want to mark the end of the EOS-1D DSLR era

EOS M (2012)

  • Canon shooters who want the camera that started Canon's mirrorless story
  • Budget first-time mirrorless buyers who already own EF/EF-S glass
  • Collectors of significant digital camera milestones

EOS R5 C (2022)

  • Videographers and cinematographers who want Canon Cinema EOS quality in a compact, run-and-gun body
  • Hybrid photographers who shoot high-end stills and need 8K RAW video capability in the same body
  • Documentary filmmakers who want unlimited recording with a built-in fan
  • RF lens owners who want to add a dedicated cinema body to their Canon system

Quick take: The eos r5 c has the highest resolution at 45mp; the eos m is the most affordable; only the eos-1d x mark iii, eos r5 c are weather sealed. Scroll down for the full spec breakdown.

Full specifications

Specification EOS-1D X Mark III (2020)EOS M (2012)EOS R5 C (2022)
Price £3,500 £80 £3,799
Sensor 20.1MP full-frame CMOS 18MP APS-C CMOS 45MP full-frame CMOS — Cinema EOS colour science
Resolution 20.1MP 18.0MP 45.0MP
Video 5.5K RAW, 4K 60fps (crop), 4K 60fps (full-frame via firmware) 1080p 30fps 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) Contrast-detect AF only — notoriously slow 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 4fps 12fps mechanical, 20fps electronic
Battery Life ~2850 shots (CIPA) ~230 shots (CIPA) ~220 shots stills / unlimited video with fan
Weight 1250g (body only) 262g (body only) 680g body only
Dimensions 158 × 167.6 × 82.6mm 108.6 × 66.5 × 32.3mm 138.5 × 98.0 × 88.0mm
Weather Sealed Yes No Yes
Viewfinder OVF 0.76× magnification, 100% coverage None (optional EVF accessory) EVF 0.76× 5.76M-dot OLED
Screen 3.2" fully articulating touchscreen, 4.15M dots 3.0" fixed touchscreen, 1.04M dots 3.0" fully articulating touchscreen, 2.1M dots
Mount Canon EF Canon EF-M mount Canon RF mount (full-frame)
Memory Cards Dual CFexpress Type B slots 1× SD/SDHC/SDXC Dual CFexpress Type B slots
Connectivity Wi-Fi 5GHz, Bluetooth 4.2, USB-C 3.1 Gen 2, Ethernet USB 2.0 USB-C, 12G-SDI, HDMI full-size, 3.5mm XLR via adapter, Wi-Fi, Bluetooth
Genre EOS-1D X Mark IIIEOS MEOS R5 C
Sports & Action
10.0
Wildlife
9.0
Wedding & Events
9.0
Portrait
8.0
6.0
9.0
Vlogging & Video
7.0
5.0
9.0
Street
7.0
6.0
Landscape
7.0
9.0
Casual
7.0
Travel
6.0
4.0
Wedding
9.0
Sports
7.0

GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →

⚡ Compare specs side by side EOS-1D X Mark III prices → EOS M prices → EOS R5 C prices →

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