Decision tools · Compare
S1R II vs BF
Quick take: The S1R II has the highest resolution at 44MP; the BF is the most affordable.
16 specs side by side·16 genres scored·UK prices from Wex Photo Video and Clifton Cameras
How to read this page. Highlighted cells win that row on the spec alone. Genre scores are the engine's base scores (enthusiast, photo and video); Camera Match re-weights them for your level and priorities. Price buttons are affiliate links; the price you pay is the same.
Sigma
BF 2025
Best for Photographers who want to strip back every distraction
£1869
new today at Wex Photo Video
Price buttons are affiliate links — GearFrame may earn a commission at no extra cost to you. It never affects a score. Learn more
Verdictwhich should you buy?
BF — Photographers Who Want To Strip Back Every Distraction: The most radical camera in years — no dials, no buttons, just a flat aluminium body and total creative minimalism.
Who should buy what
BF (2025)
is the right camera for you if…
- 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
Full specificationsthe better value in each row is highlighted
| Specification | S1R IILumix · 2025 | BFSigma · 2025 |
|---|---|---|
| Price | £2,699 | £1,869Best |
| Sensor | 44.3MP full-frame BSI CMOS | 24MP full-frame BSI CMOS |
| Resolution | 44.3MPBest | 24.0MP |
| Video | 8K/30p (first for Lumix), 4K/120p (1.1x crop), 10-bit | 6K/30p, 4K/30p, 1080p/120p, L-Log |
| Autofocus | Phase-hybrid AF (779 points) with AI subject detection | Phase-detect AF — face and eye detection |
| Stabilisation | 8-stop IBIS with Dual I.S. 2 | No IBIS (electronic IS for video) |
| Burst Rate | 40fps electronicBest | 9fps electronic |
| Battery Life | 350 shots (CIPA, LCD) | ~400 shots (CIPA)Best |
| Weight | 820g (with battery and card) | 427g (body only)Best |
| Dimensions | — | 127.0 × 75.0 × 45.0mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF, 5.76M dots | None: rear screen only |
| Screen | Fully articulating touchscreen | 3.15" fixed touchscreen — primary interface |
| Mount | L-mount | L-mount (Leica/Panasonic/Sigma) |
| Memory Cards | CFexpress Type B + SD (UHS-II) | 230GB internal storage only — no card slot |
| Connectivity | USB-C, full-size HDMI, Wi-Fi, Bluetooth | USB-C, Wi-Fi, Bluetooth |
Wins the row — price, resolution, burst, battery, weight and sealing are compared; text specs aren't ranked.
How they score by genreengine base scores out of 10
Genre
S1R II
BF
Portrait
8.8/10
6.4/10
Street
6.3/10
6.6/10
Travel
6.2/10
6.7/10
Wedding & Events
8.4/10
5.0/10
Vlogging & Video
6.1/10
—
Filmmaking
7.7/10
5.9/10
Documentary
7.9/10
6.9/10
Sports & Action
8.3/10
5.8/10
Landscape
7.7/10
6.1/10
Wildlife
8.3/10
6.3/10
Casual
5.2/10
5.5/10
Food
8.3/10
6.0/10
Macro
8.8/10
4.9/10
Architecture
8.1/10
5.5/10
Astrophotography
7.1/10
6.4/10
Fun & simple
—
4.5/10
Scores come from the same engine as Camera Match: verified specifications weighted by what each genre needs, with documented adjustments. The product page and this table show the enthusiast base score. See how scores are calculated →
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