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Sigma BF, a mirrorless camera unlike anything you've seen
When you use DPReview links to buy products, the site may earn a commission. Rendering: Sigma Sigma has revealed the BF, a radically minimalist 24MP full-frame L-mount mirrorless camera. It's a compact mirrorless body with a single rear-plate dial and three buttons that haptic feedback when pressed. Sigma says the interface has been designed to be simple and intuitive. Other than these three rear buttons, the camera has shutter and power buttons. It becomes Sigma's first camera to offer phase-detection autofocus, which is combined with a subject recognition system designed to detect humans, dogs and cats. The BF has 230GB of internal memory instead of any removable media cards and uses the USB slot to transfer data off the camera. Sigma says this is sufficient for 14,000 JPEGs, 4300 uncompressed DNG Raws or 2.5 hours of video shot in its highest quality settings. The body is milled from a single block of aluminum, which Sigma says is a first (though this may include caveats in the smallprint as both Leica and Hasselblad have made similar claims in the past). It weighs just 388g (13.7oz) without battery. However, the camera has no mechanical shutter, which means it risks exhibiting rolling shutter when used to shoot fast-moving subjects. There's also no stabilization. The BF is a small rectangular body with a texture cut into the front surface to provide grip. A small settings display to the right of the fixed live view display displays either the ISO, shutter speed or aperture value, so that the main composition panel doesn't have to have camera settings intruding on the view. In addition to stills, the BF can capture 6K video at up to 30p, or 4K footage derviced from 6K capture. This can be in H.264 or H.265 and has the option to use Leica's L-Log response curve for preserving flexibility for making tone and color adjustments in post. There are no ports on the camera, other than a single, exposed USB-C socket on the side of the body. The Sigma BF will be available in a choice of black or silver, with the black version retailing for around $2000. Silver versions of Sigma's i-series primes will be available in L-mount, to match the camera.
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| Rendering: Sigma |
Sigma has revealed the BF, a radically minimalist 24MP full-frame L-mount mirrorless camera.
It's a compact mirrorless body with a single rear-plate dial and three buttons that haptic feedback when pressed. Sigma says the interface has been designed to be simple and intuitive. Other than these three rear buttons, the camera has shutter and power buttons.
It becomes Sigma's first camera to offer phase-detection autofocus, which is combined with a subject recognition system designed to detect humans, dogs and cats.
The BF has 230GB of internal memory instead of any removable media cards and uses the USB slot to transfer data off the camera. Sigma says this is sufficient for 14,000 JPEGs, 4300 uncompressed DNG Raws or 2.5 hours of video shot in its highest quality settings.
The body is milled from a single block of aluminum, which Sigma says is a first (though this may include caveats in the smallprint as both Leica and Hasselblad have made similar claims in the past). It weighs just 388g (13.7oz) without battery.
However, the camera has no mechanical shutter, which means it risks exhibiting rolling shutter when used to shoot fast-moving subjects. There's also no stabilization.
The BF is a small rectangular body with a texture cut into the front surface to provide grip. A small settings display to the right of the fixed live view display displays either the ISO, shutter speed or aperture value, so that the main composition panel doesn't have to have camera settings intruding on the view.
In addition to stills, the BF can capture 6K video at up to 30p, or 4K footage derviced from 6K capture. This can be in H.264 or H.265 and has the option to use Leica's L-Log response curve for preserving flexibility for making tone and color adjustments in post.
There are no ports on the camera, other than a single, exposed USB-C socket on the side of the body.
The Sigma BF will be available in a choice of black or silver, with the black version retailing for around $2000. Silver versions of Sigma's i-series primes will be available in L-mount, to match the camera.
