GFX 100RFvs A7R III
Fujifilm
GFX 100RF (2025)
Starting from £5199 new
Best for Landscape, travel & street photography at medium format quality
View GFX 100RF
Sony
A7R III (2017)
Starting from £1799 new
Best for Landscape, studio & commercial photography
View A7R III
GearScore™ Verdict — Which should you buy?
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.
Landscape, Studio & Commercial Photography — A7R III (2017): The camera that converted professionals to mirrorless — 42MP, IBIS, and 10fps in a body that still competes today.
Who should buy what
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
A7R III (2017)
- Landscape and studio photographers who need 42MP resolution at a used-price discount vs A7R IV
- Canon/Nikon DSLR professionals considering a mirrorless switch at a lower investment
- Commercial and product photographers who want full-frame resolution with IBIS for handheld work
- Portrait photographers who want the sharpest possible full-frame files for large print work
Quick take: The gfx 100rf has the highest resolution at 102mp; the a7r iii is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | GFX 100RF (2025) | A7R III (2017) |
|---|---|---|
| Price | £5,199 | £1,799 |
| Sensor | 102MP medium format BSI CMOS (43.8 × 32.9mm) | 42.4MP full-frame BSI Exmor R CMOS |
| Resolution | 102.0MP | 42.4MP |
| Video | 4K/30p (crop), 4K/60p (crop) — F-Log2 | 4K/30p (full-frame readout), 1080p/120p |
| Autofocus | Phase-detect AF with face and eye detection | 399 phase-detect + 425 contrast AF points — real-time Eye AF |
| Stabilisation | 8-stop IBIS | 5-axis IBIS — 5.5 stops |
| Burst Rate | 8fps electronic | 10fps with AF/AE tracking |
| Battery Life | ~490 shots (CIPA) | ~650 shots (CIPA) |
| Weight | 735g body only | 650g body only |
| Dimensions | 159.0 × 90.4 × 59.0mm | 126.9 × 95.6 × 73.7mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF 0.86× 5.76M-dot — outstanding GFX viewfinder | EVF, 3.69M dots, 0.78× magnification |
| Screen | 3.2" tilting touchscreen, 2.36M dots | 3.0" touchscreen, tilting |
| Mount | Fixed GF 35mm f/4 (28mm equivalent in 35mm terms) | Sony FE mount (full-frame E-mount) |
| Memory Cards | Single CFexpress Type B / SD UHS-II slot | Dual SD slots (one UHS-II) |
| Connectivity | USB-C, Wi-Fi 5GHz, Bluetooth, 3.5mm mic jack | USB-C, Bluetooth, Wi-Fi, 3.5mm mic jack |
Suitability by genre
| Genre | GFX 100RF | A7R III |
|---|---|---|
| Landscape | ||
| Travel | — | |
| Street | ||
| Portrait | ||
| Sports | ||
| Vlogging & Video | ||
| Wedding | — |
GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →
More comparisons with GFX 100RF
Camera family history