BFvs A6700
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.
All-Round & Video — A6700 (2023): Best-in-class autofocus and 4K/120p video in a compact APS-C body — the standout camera under £1,000.
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
A6700 (2023)
- APS-C photographers who want the best Sony autofocus in a compact body
- Video shooters who need 4K/120p and subject tracking in a smaller package
- A6400 or A6600 owners ready for a significant AF and video upgrade
- Photographers who want near-A7 performance without the full-frame price
Quick take: The a6700 has the highest resolution at 26mp; the a6700 is the most affordable; only the bf is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | BF (2025) | A6700 (2023) |
|---|---|---|
| Price | £1,799 | £999 |
| Sensor | 24MP full-frame BSI CMOS | 26MP APS-C Exmor R BSI CMOS |
| Resolution | 24.0MP | 26.0MP |
| Video | 4K/30p, 1080p/60p | 4K/120p, 4K/60p oversampled, S-Log3, 10-bit |
| Autofocus | Phase-detect AF — face and eye detection | 759-point phase-detect, AI subject recognition (human/animal/bird/vehicle) |
| Stabilisation | 5-axis IBIS — 7 stops | 5-axis IBIS, 5.0 stops |
| Burst Rate | 9fps electronic | 11fps mechanical, 30fps electronic |
| Battery Life | ~400 shots (CIPA) | ~570 shots (CIPA) |
| Weight | 427g body only | 493g body only |
| Dimensions | 127.0 × 75.0 × 45.0mm | 122.0 × 69.0 × 75.1mm |
| Weather Sealed | Yes | No |
| Viewfinder | EVF 0.75× 3.68M-dot | EVF, 2.36M dots |
| Screen | 3.15" fully articulating touchscreen — primary interface | 3.0" vari-angle touchscreen |
| Mount | L-mount (Leica/Panasonic/Sigma) | Sony E-mount |
| Memory Cards | Single UHS-II SD slot | Single SD UHS-II / CFexpress Type A slot |
| Connectivity | USB-C, Wi-Fi, Bluetooth | USB-C (3.2), Bluetooth, Wi-Fi |
Suitability by genre
| Genre | BF | A6700 |
|---|---|---|
| Street | ||
| Travel | — | |
| Portrait | ||
| Landscape | ||
| Sports | — | |
| Vlogging & Video | ||
| Sports & Action | — | |
| Wildlife | — |
More comparisons with BF
Camera family history