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EOS-1D X Mark IIIvs Canon EOS R3vs EOS R6 Mark II

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 Canon EOS R3 Canon Canon EOS R3 (2021) Starting from £5999 new Best for Sports & photojournalism professionals View Canon EOS R3
VS
Canon EOS R6 Mark II Canon EOS R6 Mark II (2022) Starting from £2099 new Best for Portraits & action View EOS R6 Mark II

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.

Sports & Photojournalism Professionals — Canon EOS R3 (2021): The pinnacle of Canon's mirrorless lineup for speed — Eye Control AF and 30fps burst in the most rugged body Canon has ever produced.

Portraits & Action — EOS R6 Mark II (2022): 40fps burst, 8-stop IBIS, and Canon's best-in-class Dual Pixel AF — exceptional for action, sports, and portrait work.

↓ 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

Canon EOS R3 (2021)

  • Professional sports and photojournalism photographers
  • Canon users who need the fastest burst and most reliable AF in the system
  • R5 users who want a pro-grade grip and faster shooting speed
  • Event photographers who need eye-controlled AF and dual card slots

EOS R6 Mark II (2022)

  • Wedding and event photographers who need the most reliable Canon AF available
  • Sports and wildlife shooters who want 40fps and subject detection
  • R6 owners looking for a significant AF and burst speed upgrade
  • Hybrid shooters who need 4K/60p and IBIS in a versatile full-frame body

Quick take: The eos r6 mark ii has the highest resolution at 24mp; the eos r6 mark ii is the most affordable. Scroll down for the full spec breakdown.

Full specifications

Specification EOS-1D X Mark III (2020)Canon EOS R3 (2021)EOS R6 Mark II (2022)
Price £3,500 £5,999 £2,099
Sensor 20.1MP full-frame CMOS 24.1MP full-frame BSI stacked CMOS 24.2MP Full-frame BSI CMOS
Resolution 20.1MP 24.1MP 24.2MP
Video 5.5K RAW, 4K 60fps (crop), 4K 60fps (full-frame via firmware) 6K RAW, 4K/120p, 1080p/180p 4K/60p 10-bit oversampled, 6K RAW out, FHD/180p
Autofocus 191-point all cross-type OVF AF; 525-point Dual Pixel CMOS AF (Live View) Dual Pixel CMOS AF II with Eye Control AF Dual Pixel CMOS AF II, 6072 zones, deep-learning subject tracking
Stabilisation 8-stop IBIS 5-axis IBIS, 8.0 stops (coordinated with IS lenses)
Burst Rate 16fps mechanical, 20fps live view 30fps electronic / 12fps mechanical 12fps mechanical, 40fps electronic
Battery Life ~2850 shots (CIPA) 620 shots (CIPA) ~760 shots (CIPA)
Weight 1250g (body only) 1015g body only 670g body only
Dimensions 158 × 167.6 × 82.6mm 150.0 × 142.6 × 87.2mm 138.4 × 98.4 × 88.4mm
Weather Sealed Yes Yes Yes
Viewfinder OVF 0.76× magnification, 100% coverage 0.76" OLED EVF, 5.76M dots, 120fps EVF, 3.69M dots, 0.76× magnification
Screen 3.2" fully articulating touchscreen, 4.15M dots 3.2" fully articulating touchscreen 3.0" fully articulating touchscreen
Mount Canon EF Canon RF Canon RF mount (full-frame)
Memory Cards Dual CFexpress Type B slots Dual CFexpress Type B Dual SD UHS-II slots
Connectivity Wi-Fi 5GHz, Bluetooth 4.2, USB-C 3.1 Gen 2, Ethernet USB-C 3.2, HDMI full-size, Wi-Fi 6, Bluetooth, LAN USB-C 3.1, Bluetooth, Wi-Fi
Genre EOS-1D X Mark IIICanon EOS R3EOS R6 Mark II
Sports & Action
10.0
9.0
9.0
Wildlife
9.0
9.0
7.0
Wedding & Events
9.0
7.0
9.0
Portrait
8.0
9.0
Vlogging & Video
7.0
7.0
9.0
Street
7.0
Landscape
7.0
7.0
Photojournalism
9.0
Travel
4.0

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 → Canon EOS R3 prices → EOS R6 Mark II prices →

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