Sigma has announced a new compact full-frame camera called the BF, which boasts a minimalist design and a unique approach to storage. The camera features a 24.6-megapixel full-frame sensor, but instead of a traditional memory card slot, it comes with 230GB of built-in storage.

The BF's design is characterized by its clean and simple aesthetic, with only four button controls and a dial on the back of the camera. The body is milled from a single block of aluminum, giving it a sleek and premium feel. The user interface has also been redesigned with a "completely new information structure compared to conventional digital cameras," according to Sigma.

The camera's back features a fixed 3.2-inch touchscreen display, three touch controls with haptic feedback, and a smaller status monitor screen that shows settings options. The shutter button is located on top of the camera, next to two small microphone holes. The streamlined user interface surrounds the live preview with shooting-related settings, including shutter speed, aperture, ISO, and EV compensation.

The BF also comes with 13 different color modes, allowing photographers to achieve a specific look in-camera without the need for post-processing. These modes include options like standard and rich, as well as more creative modes like forest green, sunset red, warm gold, cinema, and monochrome.

In terms of video capabilities, the BF can capture 6K video at up to 29.97 frames per second, and can store up to 2.5 hours of video at its highest quality setting. The camera also features a hybrid autofocus system that combines phase and contrast detection, and uses "state of the art algorithms" to detect and quickly focus on specific subjects, including people, dogs, and cats.

The Sigma BF will be available in black or silver finishes for $1,999, but that pricing does not include a lens. The camera is compatible with the L-Mount lens standard, initially developed by Leica but now used by Panasonic and Sigma as well. Sigma will also be updating its I Series collection of prime lenses with a new silver color option to match the BF.

The BF's unique approach to storage may raise some eyebrows, but Sigma claims that the 230GB of built-in storage is enough to store 14,000 JPEGs or 4,300 uncompressed RAW files. The camera also features a USB-C port for charging and transferring files.

Overall, the Sigma BF represents a bold new direction for the company, with its focus on simplicity, ease of use, and built-in storage. While it may not be for everyone, the BF is sure to appeal to photographers who value a more streamlined shooting experience.