Lumix G9vs BF
Sigma
BF (2025)
Starting from £1799 new
Best for Photographers who want to strip back every distraction
View BF
GearScore™ Verdict — Which should you buy?
Wildlife, Sports, Travel — Lumix G9 (2017): The G9 showed that Micro Four Thirds could compete for fast-action stills.
Photographers Who Want To Strip Back Every Distraction — BF (2025): The most radical camera in years — no dials, no buttons, just a flat aluminium body and total creative minimalism.
Who should buy what
Lumix G9 (2017)
- Wildlife photographers who want fast burst and long telephoto reach at lower cost
- MFT system users who prioritise stills over video
BF (2025)
- Photographers who find camera menus and dials a distraction from the creative process
- L-mount system users who want the lightest, most minimal full-frame body available
- Design enthusiasts who value the object quality and philosophy as much as the output
- Sigma fp/fp L users ready for a more radical step toward minimal photography
Quick take: The bf has the highest resolution at 24mp; the lumix g9 is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | Lumix G9 (2017) | BF (2025) |
|---|---|---|
| Price | £549 | £1,799 |
| Sensor | Micro Four Thirds Live MOS | 24MP full-frame BSI CMOS |
| Resolution | 20.3MP | 24.0MP |
| Video | 4K 60fps, C4K 24fps | 4K/30p, 1080p/60p |
| Autofocus | 225-point contrast-detect DFD | Phase-detect AF — face and eye detection |
| Stabilisation | 5-axis IBIS, 6.5 stops (6.0 stops dual IS) | 5-axis IBIS — 7 stops |
| Burst Rate | 20fps mechanical, 60fps electronic | 9fps electronic |
| Battery Life | 400 shots (CIPA) | ~400 shots (CIPA) |
| Weight | 658g (body only) | 427g body only |
| Dimensions | 136.9 × 97.3 × 91.6mm | 127.0 × 75.0 × 45.0mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF 0.83× 3.68M-dot | EVF 0.75× 3.68M-dot |
| Screen | 3.0" fully articulating touchscreen, 1.04M-dot | 3.15" fully articulating touchscreen — primary interface |
| Mount | Micro Four Thirds | L-mount (Leica/Panasonic/Sigma) |
| Memory Cards | 2× SD UHS-II | Single UHS-II SD slot |
| Connectivity | Wi-Fi, Bluetooth 4.2, USB-C, HDMI full-size | USB-C, Wi-Fi, Bluetooth |
Suitability by genre
| Genre | Lumix G9 | BF |
|---|---|---|
| Sports & Action | — | |
| Wildlife | — | |
| Landscape | ||
| Travel | ||
| Portrait | ||
| Vlogging & Video | ||
| Street | — | |
| Sports | — |
GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →
More comparisons with Lumix G9
Camera family history