OM System TG-7vs BF
OM System
OM System TG-7 (2023)
Starting from £449 new
Best for Adventure, underwater & outdoor use
View OM System TG-7
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?
Adventure, Underwater & Outdoor Use — OM System TG-7 (2023): Waterproof to 15m, freezeproof and shockproof — the TG-7 is the most capable rugged compact for adventure and outdoor use.
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 System TG-7 (2023)
- Divers and snorkellers who need a waterproof camera without a housing
- Outdoor and adventure photographers who want a rugged pocket compact
- Parents who want an indestructible camera for children and family adventures
- Travellers who want a tough backup camera that can go anywhere
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 system tg-7 is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | OM System TG-7 (2023) | BF (2025) |
|---|---|---|
| Price | £449 | £1,799 |
| Sensor | 12MP BSI CMOS | 24MP full-frame BSI CMOS |
| Resolution | 12.0MP | 24.0MP |
| Video | 4K/30p, 1080p/120p | 4K/30p, 1080p/60p |
| Autofocus | Hybrid phase/contrast AF | Phase-detect AF — face and eye detection |
| Stabilisation | Digital IS | 5-axis IBIS — 7 stops |
| Burst Rate | 20fps | 9fps electronic |
| Battery Life | 340 shots (CIPA) | ~400 shots (CIPA) |
| Weight | 253g | 427g body only |
| Dimensions | 113.0 × 66.5 × 32.7mm | 127.0 × 75.0 × 45.0mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | None | EVF 0.75× 3.68M-dot |
| Screen | 3.0" fixed TFT LCD | 3.15" fully articulating touchscreen — primary interface |
| Mount | Fixed 25mm-equiv f/2.0 lens (4× optical zoom) | L-mount (Leica/Panasonic/Sigma) |
| Memory Cards | Single SD UHS-I | Single UHS-II SD slot |
| Connectivity | USB-C, Wi-Fi, Bluetooth | USB-C, Wi-Fi, Bluetooth |
Suitability by genre
| Genre | OM System TG-7 | BF |
|---|---|---|
| Adventure & Outdoor | — | |
| Underwater | — | |
| Travel | ||
| Family & Everyday | — | |
| Street | ||
| Portrait | ||
| Landscape | — | |
| 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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