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EOS-1D X Mark IIIvs GFX 100S

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
Fujifilm GFX 100S Fujifilm GFX 100S (2021) Starting from £3999 new Best for Commercial, portrait & landscape photographers View GFX 100S

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.

Commercial, Portrait & Landscape Photographers — GFX 100S (2021): 102MP medium-format with IBIS and phase-detect AF at a price that made serious large-format imaging available to a new generation of photographers.

↓ 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

GFX 100S (2021)

  • Portrait and commercial photographers who need extraordinary resolution and rendering
  • Landscape photographers who want the finest large-format detail in a manageable body
  • GFX 50S II users who want to double their resolution with improved AF
  • Studio photographers moving up from full-frame who want medium-format colour science

Quick take: The gfx 100s has the highest resolution at 102mp; the eos-1d x mark iii is the most affordable. Scroll down for the full spec breakdown.

Full specifications

Specification EOS-1D X Mark III (2020)GFX 100S (2021)
Price £3,500 £3,999
Sensor 20.1MP full-frame CMOS 102MP Medium Format BSI CMOS (43.8 × 32.9mm)
Resolution 20.1MP 102.0MP
Video 5.5K RAW, 4K 60fps (crop), 4K 60fps (full-frame via firmware) 4K/30p, FHD/120p
Autofocus 191-point all cross-type OVF AF; 525-point Dual Pixel CMOS AF (Live View) Phase-detect hybrid AF, face/eye detection
Stabilisation IBIS — up to 6 stops
Burst Rate 16fps mechanical, 20fps live view 5fps
Battery Life ~2850 shots (CIPA) ~460 shots (CIPA)
Weight 1250g (body only) 900g (with battery and card)
Dimensions 158 × 167.6 × 82.6mm 150.0 × 104.2 × 87.2mm
Weather Sealed Yes Yes
Viewfinder OVF 0.76× magnification, 100% coverage EVF, 5.76M dots, 0.77× magnification
Screen 3.2" fully articulating touchscreen, 4.15M dots 3.0" 3-direction tilting touchscreen
Mount Canon EF Fujifilm GFX (G-mount)
Memory Cards Dual CFexpress Type B slots Single CFexpress Type B / SD UHS-II combo slot
Connectivity Wi-Fi 5GHz, Bluetooth 4.2, USB-C 3.1 Gen 2, Ethernet USB-C, Wi-Fi, Bluetooth
Genre EOS-1D X Mark IIIGFX 100S
Sports & Action
10.0
4.0
Wildlife
9.0
Wedding & Events
9.0
Portrait
8.0
9.0
Vlogging & Video
7.0
4.0
Street
7.0
Landscape
7.0
9.0
Architecture
9.0
Travel
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 → GFX 100S prices →

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