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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.

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 · 2025BFSigma · 2025
Price £2,699£1,869Best
Sensor 44.3MP full-frame BSI CMOS24MP full-frame BSI CMOS
Resolution 44.3MPBest24.0MP
Video 8K/30p (first for Lumix), 4K/120p (1.1x crop), 10-bit6K/30p, 4K/30p, 1080p/120p, L-Log
Autofocus Phase-hybrid AF (779 points) with AI subject detectionPhase-detect AF — face and eye detection
Stabilisation 8-stop IBIS with Dual I.S. 2No IBIS (electronic IS for video)
Burst Rate 40fps electronicBest9fps 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 YesYes
Viewfinder EVF, 5.76M dotsNone: rear screen only
Screen Fully articulating touchscreen3.15" fixed touchscreen — primary interface
Mount L-mountL-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, BluetoothUSB-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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