OM-1vs 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, Sport, Outdoor — OM-1 (2022): OM System's statement camera — class-leading weather sealing and the best IBIS in the business.
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
OM-1 (2022)
- Wildlife and bird photographers who need fast burst and pro weather sealing
- Outdoor photographers who work in challenging conditions
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 om-1 is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | OM-1 (2022) | BF (2025) |
|---|---|---|
| Price | £1,299 | £1,799 |
| Sensor | Micro Four Thirds Live MOS stacked BSI | 24MP full-frame BSI CMOS |
| Resolution | 20.4MP | 24.0MP |
| Video | 4K 60fps 10-bit | 4K/30p, 1080p/60p |
| Autofocus | 1053-point cross-type phase-detect, AI subject recognition | Phase-detect AF — face and eye detection |
| Stabilisation | 5-axis IBIS, 7.0 stops (8 stops with sync IS) | 5-axis IBIS — 7 stops |
| Burst Rate | 10fps mechanical, 50fps electronic, 120fps Pro Capture | 9fps electronic |
| Battery Life | 520 shots (CIPA) | ~400 shots (CIPA) |
| Weight | 599g (body only) | 427g body only |
| Dimensions | 134.8 × 91.6 × 72.7mm | 127.0 × 75.0 × 45.0mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF 0.83× 5.76M-dot | EVF 0.75× 3.68M-dot |
| Screen | 3.0" fully articulating touchscreen, 1.62M-dot | 3.15" fully articulating touchscreen — primary interface |
| Mount | Micro Four Thirds | L-mount (Leica/Panasonic/Sigma) |
| Memory Cards | 2× SD UHS-II / CFexpress Type B | Single UHS-II SD slot |
| Connectivity | Wi-Fi 5GHz, Bluetooth 5.0, USB-C 3.1, HDMI, 3.5mm mic/headphone | USB-C, Wi-Fi, Bluetooth |
Suitability by genre
| Genre | OM-1 | BF |
|---|---|---|
| Wildlife | — | |
| Sports & Action | — | |
| Landscape | ||
| Travel | ||
| Portrait | ||
| Casual | — | |
| Astrophotography | — | |
| Street | — | |
| Sports | — | |
| Vlogging & Video | — |
GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →
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Camera family history