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EOS-1D X Mark IIIvs EOS M100vs EOS R6

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 M100 Canon EOS M100 (2017) Starting from £200 new Best for Casual & Everyday View EOS M100
VS
Canon EOS R6 Canon EOS R6 (2020) Starting from £1299 new Best for Wedding, portrait, sports, video View EOS R6

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.

Casual & Everyday — EOS M100 (2017): The EOS M100 is Canon's most stripped-back EF-M camera — small, simple, and focused on making great photos easy. Dual Pixel AF, 24MP, and a tilting touchscreen are its strengths; no EVF, no IBIS, and no 4K are its compromises. A solid, affordable first mirrorless for casual photographers who want more than a smartphone.

Wedding, Portrait, Sports, Video — EOS R6 (2020): The camera that made Canon's RF system worth taking seriously.

↓ 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 M100 (2017)

  • Smartphone users wanting their first interchangeable-lens camera
  • Casual photographers who want APS-C quality in a slim, stylish body
  • Anyone wanting a simple, affordable EF-M entry point
  • Students and beginners learning photography

EOS R6 (2020)

  • Canon DSLR shooters moving to mirrorless
  • Hybrid photographers who shoot both stills and video

Quick take: The eos m100 has the highest resolution at 24mp; the eos m100 is the most affordable; only the eos-1d x mark iii, eos r6 are weather sealed. Scroll down for the full spec breakdown.

Full specifications

Specification EOS-1D X Mark III (2020)EOS M100 (2017)EOS R6 (2020)
Price £3,500 £200 £1,299
Sensor 20.1MP full-frame CMOS 24.2MP APS-C CMOS (Dual Pixel) Full-frame CMOS 35mm
Resolution 20.1MP 24.2MP 20.1MP
Video 5.5K RAW, 4K 60fps (crop), 4K 60fps (full-frame via firmware) 1080p/60p 4K 60fps (crop), 4K 30fps (full), 1080p 120fps
Autofocus 191-point all cross-type OVF AF; 525-point Dual Pixel CMOS AF (Live View) Dual Pixel CMOS AF with face and subject detection Dual Pixel CMOS AF II, 6072 AF positions, subject tracking
Stabilisation 5-axis IBIS, up to 8 stops coordinated IS
Burst Rate 16fps mechanical, 20fps live view 6.1fps 12fps mechanical, 20fps electronic
Battery Life ~2850 shots (CIPA) ~295 shots (CIPA) 380 shots (LCD), 510 shots (EVF)
Weight 1250g (body only) 302g (with battery and card) 598g (body only)
Dimensions 158 × 167.6 × 82.6mm 108.2 × 67.1 × 35.1mm 138.4 × 97.5 × 88.4mm
Weather Sealed Yes No Yes
Viewfinder OVF 0.76× magnification, 100% coverage None EVF 0.76× 3.69M-dot
Screen 3.2" fully articulating touchscreen, 4.15M dots 3.0" tilting touchscreen, 1.04M dots 3.0" fully articulating touchscreen, 1.62M-dot
Mount Canon EF Canon EF-M mount Canon RF
Memory Cards Dual CFexpress Type B slots Single SD UHS-I slot 2× SD UHS-II
Connectivity Wi-Fi 5GHz, Bluetooth 4.2, USB-C 3.1 Gen 2, Ethernet USB, Wi-Fi, Bluetooth, NFC Wi-Fi 5GHz, Bluetooth 4.2, USB-C 3.1, HDMI
Genre EOS-1D X Mark IIIEOS M100EOS R6
Sports & Action
10.0
4.5
9.0
Wildlife
9.0
8.0
Wedding & Events
9.0
9.0
Portrait
8.0
7.5
9.0
Vlogging & Video
7.0
7.0
9.0
Street
7.0
6.5
7.0
Landscape
7.0
7.0
Casual
8.5
Travel
8.0

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 M100 prices → EOS R6 prices →

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