Sigma has introduced its latest camera, the BF, a 24.6-megapixel full-frame model with a minimalist design. This compact device features just four button controls and a dial, making it one of the simplest cameras available. The BF is crafted from a single block of aluminium and boasts a redesigned user interface that Sigma says offers a “completely new information structure” compared to traditional digital cameras. One of its most notable features is the absence of a memory card slot, replaced by an internal SSD.
Available in black or silver, the Sigma BF is priced at US$1,999, with shipping expected to begin in April 2025. The price does not include a lens, but the camera is fully compatible with L-Mount lenses, a standard developed by Leica and now used by Panasonic and Sigma. To complement the BF, Sigma is expanding its I Series collection of prime lenses with a new silver colour option.
Minimalist controls and a refined user experience
The BF’s minimalist approach is most evident on the back of the camera. Instead of traditional buttons, it features a 3.2-inch touchscreen display without articulation. Below the screen are three touch controls that provide haptic feedback, mimicking the feel of physical buttons. A control dial above the touch controls has an additional haptic button in its centre, allowing users to navigate menus smoothly. A small status monitor also displays essential settings, keeping the main screen uncluttered.
The user interface is designed for efficiency. The live preview display is surrounded by key shooting settings such as shutter speed, aperture, ISO, and EV compensation, while secondary settings are tucked away in an optional menu. Additional camera management functions are stored within a system menu.
In line with modern digital cameras, the BF includes 13 colour modes, allowing photographers to apply different styles without post-processing. These include standard options like rich and monochrome and creative modes like forest green, sunset red, warm gold, and cinema.
Internal SSD and powerful performance
Unlike most digital cameras, the Sigma BF has no memory card slot. Instead, it includes a 230GB built-in SSD, providing ample storage space. According to Sigma, this capacity allows users to store 14,000 JPEG images or 4,300 uncompressed RAW files. A USB-C port is available for charging and transferring files.
The BF can also record 6K video at up to 29.97 frames per second and store up to 2.5 hours of footage in the highest quality setting.
The BF captures images at up to eight frames per second for still photography. It features a hybrid autofocus system that combines phase detection and contrast detection for faster and more precise focusing. Sigma has also integrated advanced algorithms into the AF system, allowing the camera to recognise and track subjects such as people, dogs, and cats.
With its sleek design, built-in SSD, and powerful performance, the Sigma BF offers a fresh take on full-frame photography. While its lack of a memory card slot may raise eyebrows, its cutting-edge technology and simplified user experience make it an exciting option for minimalist photographers.
