OM-5vs 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?
Outdoor & Adventure — OM-5 (2022): The toughest camera at this price — IP53 weather sealing and 7.5-stop IBIS built for adventure photographers.
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-5 (2022)
- Outdoor and adventure photographers who need a compact, weather-sealed body
- Travellers who want MFT's compact size with pro-level weather protection
- E-M5 III owners upgrading to OM System's improved subject detection
- Photographers who want strong IBIS and rugged build without OM-1 pricing
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-5 is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | OM-5 (2022) | BF (2025) |
|---|---|---|
| Price | £899 | £1,799 |
| Sensor | 20.4MP Micro Four Thirds Live MOS | 24MP full-frame BSI CMOS |
| Resolution | 20.4MP | 24.0MP |
| Video | 4K/60p, 4K/120p Cinema4K | 4K/30p, 1080p/60p |
| Autofocus | Phase-detect, 121 all-cross points, subject tracking | Phase-detect AF — face and eye detection |
| Stabilisation | 5-axis IBIS, 7.5 stops (Dual IS with compatible lenses) | 5-axis IBIS — 7 stops |
| Burst Rate | 30fps electronic, 10fps mechanical | 9fps electronic |
| Battery Life | ~370 shots (CIPA) | ~400 shots (CIPA) |
| Weight | 414g body only | 427g body only |
| Dimensions | 122.3 × 87.6 × 49.7mm | 127.0 × 75.0 × 45.0mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF, 2.36M dots, 0.74× magnification | EVF 0.75× 3.68M-dot |
| Screen | 3.0" fully articulating touchscreen | 3.15" fully articulating touchscreen — primary interface |
| Mount | Micro Four Thirds | L-mount (Leica/Panasonic/Sigma) |
| Memory Cards | Dual SD UHS-II slots | Single UHS-II SD slot |
| Connectivity | USB-C, Bluetooth, Wi-Fi | USB-C, Wi-Fi, Bluetooth |
Suitability by genre
| Genre | OM-5 | BF |
|---|---|---|
| Outdoor & Adventure | — | |
| Landscape | ||
| Travel | ||
| Wildlife | — | |
| Portrait | ||
| Sports & Action | — | |
| 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