Who should buy the BF?

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

How much does the BF cost in the UK?

The BF starts from £1999 in the UK, available across 4 retailers. Prices are tracked live on GearFrame.

Sigma

Sigma BF

Name: BF
Brand: Sigma
Availability: InStock

The Sigma BF is one of the most radical cameras ever made — a full-frame L-mount mirrorless body with almost no physical controls. Its completely flat aluminium front and a touch-only interface remove every dial, button, and lever, reducing the camera to its purest form. Underneath the minimal exterior sits a 24MP full-frame BSI CMOS sensor, phase-detect AF, and the complete Sigma colour science. BF stands for 'Beautiful Feelings' — a camera designed to make the act of photography as uncluttered as possible.

GearFrame's Take

The most radical camera in years — no dials, no buttons, just a flat aluminium body and total creative minimalism.

Starting from

£1999 new

Used from £1400 (eBay)

Average price across retailers: ~£1899

Available at 4 retailers

Check price at Wex Photo Video

✓ Available at 4 retailers 🔒 No signup needed 📦 UK stock only

RetailerPrice

New

eBay

Lowest Buy It Now · marketplace

£1690

Search eBay →

Wex Photo Video

£1999

Check on Wex Photo Video →

Amazon

—

Check on Amazon →

Used

eBay used

Lowest Buy It Now · marketplace

£1400

Search eBay →

Prices are synced live from UK retailers. Not every product will be stocked by every retailer; older models may only be available second hand.

Value & Depreciation

£1969

Launch price

→

£1799

Today

Value drop

Over ~1 year, this camera has cost roughly £170/year to own (buy at launch price, sell today). That's one of the lower cost-per-year cameras in its class.

What fits the Sigma BF

See all 78 accessories that fit →

Battery BP-81 400 shots per charge (CIPA) Every BP-81 battery and charger →

Memory card —Card slots not recorded yet.

Filter size Depends on the lens. The commonest threads on Leica L lenses: 67mm29 77mm20 82mm18 62mm10 72mm8 52mm6 55mm5 58mm3 Number = lenses with that thread. Your lens's size is on its product page. All filter sizes →

Core

Released

2025

Sensor

24MP full-frame BSI CMOS

Resolution

24.0 MP

Mount

L-mount (Leica/Panasonic/Sigma)

Dimensions

127.0 × 75.0 × 45.0mm

Weight

427g (body only)

Weather Sealed

Yes

Performance

Autofocus

Phase-detect AF — face and eye detection

Stabilisation

No IBIS (electronic IS for video)

Burst Rate

9fps electronic

Battery Life

~400 shots (CIPA)

Features

Video

6K/30p, 4K/30p, 1080p/120p, L-Log

Viewfinder

None: rear screen only

Screen

3.15" fixed touchscreen — primary interface

Memory Cards

230GB internal storage only — no card slot

Connectivity

USB-C, Wi-Fi, Bluetooth

Detailed Specs

Sensor Format

Full frame

Viewfinder Type

None

Screen Type

Fixed

Touchscreen

Yes

Card Slots

Battery Life (CIPA)

400 shots

Dimensions

127 × 75 × 45mm

Weight (Grams)

446g

Autofocus Type

On-sensor phase detect (hybrid)

Subject Detection

Face, Eye, Animal

Max Burst Rate

9.0fps

In-Body Stabilisation

Max Video Resolution

Max 4K Frame Rate

30fps

10-Bit Video

Yes

Log Profile

Yes

Built-in Microphone Input

Headphone Jack

Select up to 2 cameras to compare against the BF. It's always pinned as the baseline.

Select 1–3 cameras to compare

Who should buy this

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

GearScore™ — Suitability by Genre

Base score — computed from verified specs for an enthusiast shooting photo and video. Camera Match adjusts it for your skill level and priorities.

Portrait

6.4

Street

6.6

Travel

6.5

Wedding & Events

5.0

Filmmaking

5.9

Documentary

6.9

Sports & Action

5.8

Landscape

6.1

Wildlife

6.3

Casual

5.5

Food

6.0

Macro

4.9

Architecture

5.5

Astrophotography

6.4

Fun & simple

5.0

✅ Great For

🎥

Documentary 6.9 Strong on autofocus, video capability and weather sealing.

⚠️ Not Ideal For

🔬

Macro 4.9 Held back by stabilisation and in-camera focus stacking.

📝 How suitability scores are calculated GearScore™ genre scores are calculated from this camera's verified specifications — autofocus, sensor, weight, weather sealing and more — weighted by what matters for each type of photography. Where a spec sheet misses something (e.g. a manual-focus rangefinder for street), we apply a documented editorial adjustment. Scores are not based on customer reviews. See our full methodology →