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EOS-1D X Mark IIIvs EOS M100vs EOS M50

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 M50 Canon EOS M50 (2018) Starting from £350 new Best for Casual & Vlogging View EOS M50

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.

Casual & Vlogging — EOS M50 (2018): The EOS M50 is the most complete-feeling entry-level EF-M camera — built-in EVF, fully articulating screen, Dual Pixel AF, and a well-designed compact body. Its 4K video carries a significant crop and loses Dual Pixel AF, making 1080p the practical option — but for stills and casual video, it remains an excellent used-market buy.

↓ 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 M50 (2018)

  • Beginner photographers who want an EVF in a compact mirrorless
  • Vloggers who want face-tracking AF and a flip screen
  • Students stepping up to their first mirrorless camera
  • Used-market shoppers wanting a well-rounded EF-M package

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 is weather sealed. Scroll down for the full spec breakdown.

Full specifications

Specification EOS-1D X Mark III (2020)EOS M100 (2017)EOS M50 (2018)
Price £3,500 £200 £350
Sensor 20.1MP full-frame CMOS 24.2MP APS-C CMOS (Dual Pixel) 24.1MP APS-C CMOS (Dual Pixel)
Resolution 20.1MP 24.2MP 24.1MP
Video 5.5K RAW, 4K 60fps (crop), 4K 60fps (full-frame via firmware) 1080p/60p 4K/24p (crop, no Dual Pixel AF), 1080p/60p
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 with face and subject detection
Burst Rate 16fps mechanical, 20fps live view 6.1fps 10fps
Battery Life ~2850 shots (CIPA) ~295 shots (CIPA) ~235 shots (CIPA)
Weight 1250g (body only) 302g (with battery and card) 387g (body only)
Dimensions 158 × 167.6 × 82.6mm 108.2 × 67.1 × 35.1mm 116.3 × 88.1 × 58.7mm
Weather Sealed Yes No No
Viewfinder OVF 0.76× magnification, 100% coverage None Electronic, 2.36M dots, 0.39" type
Screen 3.2" fully articulating touchscreen, 4.15M dots 3.0" tilting touchscreen, 1.04M dots 3.0" fully articulating touchscreen, 1.04M dots
Mount Canon EF Canon EF-M mount Canon EF-M mount
Memory Cards Dual CFexpress Type B slots Single SD UHS-I slot Single SD UHS-I slot
Connectivity Wi-Fi 5GHz, Bluetooth 4.2, USB-C 3.1 Gen 2, Ethernet USB, Wi-Fi, Bluetooth, NFC Micro USB, Wi-Fi, Bluetooth, NFC
Genre EOS-1D X Mark IIIEOS M100EOS M50
Sports & Action
10.0
4.5
5.5
Wildlife
9.0
Wedding & Events
9.0
Portrait
8.0
7.5
7.5
Vlogging & Video
7.0
7.0
7.5
Street
7.0
6.5
7.0
Landscape
7.0
Casual
8.5
8.5
Travel
8.0
8.0

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

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