Decision tools · Compare
SL2 vs BF
Quick take: The SL2 has the highest resolution at 47MP; the BF is the most affordable.
Where the SL2 wins
- Cheaper new: £1,539 vs £1,999
- Resolution: 47.3MP
- Burst Rate: 20fps
- Wedding & Events: 6.1 vs 5.0
- Filmmaking: 6.6 vs 5.9
Where the BF wins
- Battery Life: ~400 shots (CIPA)
- Weight: 427g (body only)
- Street: 6.6 vs 4.6
- Travel: 6.5 vs 4.7
- Documentary: 6.9 vs 6.2
16 specs side by side·15 genres scored·UK prices from Wex Photo Video, Clifton Cameras, MPB, eBay and Amazon UK
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
£1999
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
Size comparedbody only, no lens · drawn to one scale
- SL2 146 × 107 × 80 mm · 920 g
- BF 127 × 75 × 45 mm · 446 g
The BF is 19 mm narrower, 32 mm shorter, 35 mm slimmer and 474 g lighter than the SL2.
Drawn to scale from the makers' dimensions (W × H × D). Front shown, depth on the slanted edge.
Verdictwhich should you buy?
SL2 — Commercial, Landscape, Video: Leica's most capable system camera — excellent for photographers who want L-mount glass access.
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
SL2 (2019)
is the right camera for you if…
- Commercial photographers who want Leica quality with modern AF
- Filmmakers who want Leica glass with video capability
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 | SL2Leica · 2019 | BFSigma · 2025 |
|---|---|---|
| Price | £1,539 usedBest | £1,999 |
| Sensor | Full-frame CMOS 35mm | 24MP full-frame BSI CMOS |
| Resolution | 47.3MPBest | 24.0MP |
| Video | 5K 30fps, 4K 60fps, 1080p 180fps | 6K/30p, 4K/30p, 1080p/120p, L-Log |
| Autofocus | Contrast-detect AF, AI-based scene recognition | Phase-detect AF — face and eye detection |
| Stabilisation | 5-axis IBIS, 5.5 stops | No IBIS (electronic IS for video) |
| Burst Rate | 20fpsBest | 9fps electronic |
| Battery Life | 370 shots (CIPA) | ~400 shots (CIPA)Best |
| Weight | 835g (body only) | 427g (body only)Best |
| Dimensions | 146.0 × 107.0 × 80.5mm | 127.0 × 75.0 × 45.0mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF 0.78× 5.76M-dot | None: rear screen only |
| Screen | 3.2" fixed touchscreen, 2.10M-dot | 3.15" fixed touchscreen — primary interface |
| Mount | Leica L-Mount | L-mount (Leica/Panasonic/Sigma) |
| Memory Cards | 2× SD UHS-II | 230GB internal storage only — no card slot |
| Connectivity | Wi-Fi, Bluetooth, USB-C 3.1, HDMI full-size | 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
SL2
BF
Portrait
6.5/10
6.4/10
Street
4.6/10
6.6/10
Travel
4.7/10
6.5/10
Wedding & Events
6.1/10
5.0/10
Filmmaking
6.6/10
5.9/10
Documentary
6.2/10
6.9/10
Sports & Action
5.4/10
5.8/10
Landscape
7.0/10
6.1/10
Wildlife
5.8/10
6.3/10
Casual
3.8/10
5.5/10
Food
5.8/10
6.0/10
Macro
5.3/10
4.9/10
Architecture
7.1/10
5.5/10
Astrophotography
5.6/10
6.4/10
Fun & simple
—
5.0/10
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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