The Sigma BF is a stylish mirrorless camera with a 24 Megapixel full-frame sensor and L-mount, packed into a body milled from a single block of aluminium. Launched in February 2025, Sigma says it’s designed as a simple system camera for everyday use, aimed at photographers first. Check out my first-looks preview video below, or keep scrolling for the written highlights!

The minimalist design is machined from a single block of aluminium, with a style and finish similar to premium Apple products. It’s available in black or silver, looks great and feels good in your hands, although watch out for fingerprints on the black version.

The controls and layout are deliberately simple, with only a shutter release on the top, a strap lug on the right, USB C port on the left, and underneath a tripod thread in line with the optical axis and a battery.

You’ll note there’s no card slot, as the BF instead employs 230GB of internal storage, good for 14000 JPEGs or 4300 DNG RAW files.

Composition is with a fixed screen only, sadly no viewfinder despite its photo-oriented goals, nor even the chance to angle out the screen. At least the display is kept clean with the interface encouraging you to shoot with no information overlaid. Note the small display to the upper right of the main screen, which indicates the latest setting.

The user interface and menu system is completely redesigned for simplicity with two main screens. The first overlays a strip of settings at the top and bottom for the usual exposure, drive, quality and colour options, while a second drills-down into things like overlays. Beyond this, there are some more traditional menu options, but Sigma’s really tried to keep things clean and simple.

Inside is a 24 Megapixel full frame sensor with phase detect autofocus and up to 6k video. I suspect it’s probably the same or a very similar sensor to the Lumix S5 II and S9 and it’s also electronic shutter only. There’s also no IBIS.

Ultimately while I’d personally prefer to have a viewfinder, IBIS and mechanical shutter on a camera aimed at photography first, there’s no denying the Sigma BF is an exciting and original looking camera, which like their previous models, tries to do something different. They’ve certainly achieved that and I look forward to testing it fully.