BFvs A7 II
Sigma
BF (2025)
Starting from £1799 new
Best for Photographers who want to strip back every distraction
View BF
VS
GearScore™ Verdict — Which should you buy?
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.
Travel, Portrait — A7 II (2014): The camera that proved full-frame IBIS was possible in a compact body.
Who should buy what
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
A7 II (2014)
- Photographers upgrading from APS-C who want full-frame on a budget
- Film shooters adapting vintage lenses (IBIS helps enormously)
Quick take: The a7 ii has the highest resolution at 24mp; the a7 ii is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | BF (2025) | A7 II (2014) |
|---|---|---|
| Price | £1,799 | £549 |
| Sensor | 24MP full-frame BSI CMOS | Full-frame BSI CMOS 35mm |
| Resolution | 24.0MP | 24.3MP |
| Video | 4K/30p, 1080p/60p | 1080p 60fps |
| Autofocus | Phase-detect AF — face and eye detection | 117-point phase-detect hybrid AF |
| Stabilisation | 5-axis IBIS — 7 stops | 5-axis IBIS, 4.5 stops |
| Burst Rate | 9fps electronic | 5fps |
| Battery Life | ~400 shots (CIPA) | 350 shots (CIPA) |
| Weight | 427g body only | 599g (body only) |
| Dimensions | 127.0 × 75.0 × 45.0mm | 126.9 × 95.7 × 59.7mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF 0.75× 3.68M-dot | EVF 0.71× 2.36M-dot |
| Screen | 3.15" fully articulating touchscreen — primary interface | 3.0" tilting touchscreen, 1.23M-dot |
| Mount | L-mount (Leica/Panasonic/Sigma) | Sony E-Mount |
| Memory Cards | Single UHS-II SD slot | SD / Memory Stick Pro Duo |
| Connectivity | USB-C, Wi-Fi, Bluetooth | Wi-Fi, NFC, Micro USB, Micro HDMI |
Suitability by genre
| Genre | BF | A7 II |
|---|---|---|
| Street | ||
| Travel | ||
| Portrait | ||
| Landscape | ||
| Sports | — | |
| Vlogging & Video | ||
| Wedding & Events | — |
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