EOS-1D X Mark IIIvs GFX 100RF
Canon
EOS-1D X Mark III (2020)
Starting from £3500 new
Best for Professional Sports, Wildlife & Press Photography
View EOS-1D X Mark III
Fujifilm
GFX 100RF (2025)
Starting from £5199 new
Best for Landscape, travel & street photography at medium format quality
View GFX 100RF
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.
Landscape, Travel & Street Photography At Medium Format Quality — GFX 100RF (2025): The world's first medium format compact — 102MP, 28mm, and all 20 Fujifilm film simulations in a fixed-lens body.
Who should buy what
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 100RF (2025)
- Landscape photographers who want medium format resolution without a system of interchangeable lenses
- Leica Q3 owners who want a step up in resolution to 102MP medium format
- Fujifilm GFX users who want a compact fixed-lens body for travel alongside their system lenses
- Photographers who want the ultimate image quality in a jacket-pocketable form factor
Quick take: The gfx 100rf 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 100RF (2025) |
|---|---|---|
| Price | £3,500 | £5,199 |
| 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 (crop), 4K/60p (crop) — F-Log2 |
| Autofocus | 191-point all cross-type OVF AF; 525-point Dual Pixel CMOS AF (Live View) | Phase-detect AF with face and eye detection |
| Stabilisation | — | 8-stop IBIS |
| Burst Rate | 16fps mechanical, 20fps live view | 8fps electronic |
| Battery Life | ~2850 shots (CIPA) | ~490 shots (CIPA) |
| Weight | 1250g (body only) | 735g body only |
| Dimensions | 158 × 167.6 × 82.6mm | 159.0 × 90.4 × 59.0mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | OVF 0.76× magnification, 100% coverage | EVF 0.86× 5.76M-dot — outstanding GFX viewfinder |
| Screen | 3.2" fully articulating touchscreen, 4.15M dots | 3.2" tilting touchscreen, 2.36M dots |
| Mount | Canon EF | Fixed GF 35mm f/4 (28mm equivalent in 35mm terms) |
| Memory Cards | Dual CFexpress Type B slots | Single CFexpress Type B / SD UHS-II slot |
| Connectivity | Wi-Fi 5GHz, Bluetooth 4.2, USB-C 3.1 Gen 2, Ethernet | USB-C, Wi-Fi 5GHz, Bluetooth, 3.5mm mic jack |
Suitability by genre
| Genre | EOS-1D X Mark III | GFX 100RF |
|---|---|---|
| Sports & Action | — | |
| Wildlife | — | |
| Wedding & Events | — | |
| Portrait | ||
| Vlogging & Video | ||
| Street | ||
| Landscape | ||
| Travel | — | |
| Sports | — |
More comparisons with EOS-1D X Mark III
Camera family history