Street photography demands a camera that can keep up with quick changes in light, busy crowds, and fleeting moments. The Sigma BF is built with a unique design and an unusual feature set that makes it stand out in this kind of environment.
Coming to you from Sam Bassett of Optical Wander, this hands-on video shows the Sigma BF mirrorless camera paired with a 35mm f/2 lens. Bassett takes the setup into London, working his way from Covent Garden to Tower Bridge, capturing scenes along the way. What you’ll notice immediately is how different the control layout is compared to most cameras. Instead of a dedicated dial for shutter speed and another for aperture, the Sigma BF centralizes control through a single dial system. This forces you to think differently about how you switch between settings, which can be either refreshing or frustrating depending on your habits. It’s also impossible to ignore the design. The silver finish looks sharp, but Bassett points out it can feel too eye-catching in the street, making him more self-conscious about carrying it openly.
The video makes clear that the Sigma BF isn’t built like a typical full frame mirrorless body. There’s no electronic viewfinder, so you’re locked into composing on the rear LCD. That can feel limiting when you’re used to bringing the camera up to your eye, especially in bright daylight. On the flip side, it encourages a more casual shooting style, where you hold the camera away from your face and react faster to street activity. The fixed LCD is sharp and responsive, but its lack of tilt or articulation removes flexibility for low- or high-angle shots. Another factor is the compact but somewhat slippery grip, which Bassett found less than ideal for extended handheld use. That might matter if you plan on carrying it for long walks.
Key Specs
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Lens Mount: L-Mount
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Sensor Resolution: 24.6 MP
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Sensor: 36 x 24 mm full frame BSI CMOS
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ISO Range: 100 to 102,400
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Continuous Shooting: Up to 8 fps
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Video: 6000 x 3000 at 29.97 fps, 1080p up to 120 fps (H.264/H.265)
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Image Formats: DNG, JPEG, 14-bit
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Memory: No card slot, 230 GB internal storage
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Display: 3.15" fixed touchscreen LCD, 2,100,000 dots
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Battery: BP-81, approx. 260 shots
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Weight: 13.7 oz body only, 15.7 oz with battery
The low-light performance of the 24.6 MP sensor shows promise, especially when shooting during sunset and after dark around landmarks like St. Paul’s Cathedral and London Bridge. Nonetheless, the Sigma BF is clearly aimed at those who value portability and style over a stacked feature list. Bassett also highlights quirks, like balancing the camera for handheld long exposures and managing the lack of a viewfinder when framing fast-moving subjects like cyclists or buses at night. Check out the video above for the full rundown from Bassett.
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