Sigma BF

Sigma

Sigma BF

📅 2025 📷 24.6 MP 🔲 Full Frame (35.9 x 23.9mm) ⚖️ 446g (with battery) 🎬 6K 30fps

PhotoWorkout Score

Our composite editorial score for this product. Updated 2026-05-22.

How we score ›
ComponentWeightScore
Customer Reviews 35% data not available
Technical Analysis 30% 93.3
Market Position 20% 67.5
Value Proposition 15% data not available

Age adjustment: ×0.99 (older models get a slight downward adjustment so newer products with current technology are fairly represented).

📖 Overview

The Sigma BF is the most radical full-frame camera Sigma has ever built — a unibody compact carved from a single block of aluminum, with a stripped-down interface of one dial and one button. It pairs a 24.6 MP BSI CMOS sensor with 230 GB of internal storage and 6K video, and introduces Sigma's AI Color Mode that learns and remembers a photographer's grading preferences. At 446 g and just 36.8 mm thick, the BF trades on L-Mount versatility, premium feel, and a deliberate, minimalist shooting experience closer to a Leica than a typical hybrid mirrorless.

📸 Browse 30 real-world sample photos taken with this camera by photographers worldwide on SampleShots.

📋 Specifications

Release Year 2025
Resolution 24.6 Megapixels
Sensor Size Full Frame (35.9 x 23.9mm)
Sensor Type BSI CMOS
Max Image Resolution 6048 x 4032
ISO Range 100-102400
Max Video Resolution 6K 30fps
Weight 446g (with battery)
Dimensions 130.1 x 72.8 x 36.8mm
Special Features AI Color Mode, unibody machined aluminum, 230GB internal storage, single-dial + single-button UI, status LCD, USB-C only I/O

Last updated: May 22, 2026

🖼️ Sample Photos

Real-world photos taken with the Sigma BF, sourced from SampleShots.

🛒 Where to Buy the Sigma BF

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📰 Articles Featuring the Sigma BF