Sigma BF + 50mm f/2.0 DG Contemporary black

A rigorously simple camera,
that evokes the essence of photography.

A full-frame mirrorless camera that offers an unprecedented intuitive shooting experience.
By getting close to the photographer, the Sigma BF captures the beauty that lies hidden in everyday life and becomes the trigger to become aware of that beauty.

The BF focuses on the joy of photography that a camera as a tool can deliver.
By simplifying and eliminating all superfluous elements, this full-frame mirrorless camera redefines the process of photography as a natural act.

The unique user interface, which creates a new sense of connection between the photographer and the camera in a seamless all-metal body, is more intuitive than ever with its haptic buttons and dials. The high-resolution full-frame sensor with approx. 24 megapixels and the reliable dual autofocus system bring visions to life.

Product features:
Simple, clear and completely new user interface
The user interface of the Sigma BF has a completely new information structure compared to conventional digital cameras: The most important shooting-related settings are located on the Live View screen, secondary settings in the optional menu and control functions and detailed settings in the system menu.

Shutter speed, aperture, ISO sensitivity, exposure compensation and color mode as well as other important shooting-related elements can be set simply with a tap of the finger. In combination with the automatic setting, the functions of the general shooting mode dial are also covered.

Clear live view and status monitor
The BF's standard live view screen shows only the minimum information required and can also be set to show no information at all. As the currently active setting is displayed on the status monitor, the photographer can concentrate solely on the composition and the subject on the Live View screen.

Minimalist controls and functional feel
Three buttons, a setting dial, the shutter release and the power button are all the camera's controls. The BF is the first mirrorless camera* in which the control dial, the center button, the option button and the playback button provide haptic feedback without being subject to physical wear and tear. The buttons can be operated precisely and comfortably.
* As of February 2025 according to SIGMA research

Unibody construction
The Sigma BF is the first camera in history* to have a true unibody with unprecedented rigidity. Each camera is machined from a single solid block of aluminum in a process that takes about seven hours. The pleasant weight of the seamless, reliable all-metal body harmonizes perfectly with any attached Lens.
* As of February 2025 according to SIGMA research

Internal memory
The Sigma BF has 230 GB of internal memory, which can store more than 14,000 JPEG files, 4,300 uncompressed RAW images or 2.5 hours of video footage in the highest quality. The USB-C port offers fast data transfer and charging speed.

Different color modes
Thirteen different color modes are available on the BF to open up new avenues of creativity. The modes range from unique options such as Teal and Orange, Powder Blue and Warm Gold to creative and versatile options such as Rich and Calm.

Advanced autofocus
The Sigma BF's hybrid autofocus system, which combines phase and contrast detection, uses state-of-the-art algorithms to capture subjects accurately and reliably. In subject detection mode, not only people but also dogs and cats can be recognized

Video recording (6K, L-Log)
The BF supports high-resolution 6K and L-Log recording, enabling video productions that take advantage of the wide dynamic range of this full-frame camera.

Performance that exceeds all expectations, condensed into a small body.
The 50mm F2 expands the I-Series - the "Premium Compact Primes".
The SIGMA 50mm F2 DG | Contemporary has a high optical performance with a large F2 aperture. This guarantees expressive images with a shallow depth of field and beautiful bokeh. Thanks to its compact size, this popular classic focal length is perfect for portrait, street and everyday photography. The concept of the Lens is to always have it with you. Based on the technology used by SIGMA in the development of the SIGMA CINE Lens, the 50mm F2 DG | Contemporary has a full metal construction. This ensures robustness and an outstanding feel.

All in all, the result is an exceptionally versatile Lens that can be used in a wide variety of ways and offers images with outstanding resolution. It is perfect for beginners, for photo enthusiasts who want to take the next step, as well as for professionals who appreciate reliable tools of the trade - simply for all photographers who are looking for small full-frame lenses with uncompromisingly high optical quality.

1.
A standard lens that meets the optical performance standards of the SIGMA Contemporary product line.
The SIGMA I-Series lenses are based on the concept of "compact everyday lenses with excellent image quality". The SIGMA 50mm F2 DG | Contemporary is exactly that. It is perfect for a wide range of photographic styles and features a high-quality optical design in a compact body. Developed from the ground up for mirrorless cameras, the SIGMA 50mm F2 DG | Contemporary features an SLD glass element and three aspherical lens elements that excellently correct various types of aberrations and ensure clear, high-resolution images.

The contrasting priorities of improving optical performance on the one hand and reducing size and weight on the other have been achieved by incorporating the latest optical design and state-of-the-art processing and production technologies at SIGMA's sole production facility in Aizu.

The focal length of 50mm is particularly popular in portrait photography. For this reason, soft bokeh, which is provided by the F2 aperture, was another focal point in the design of the Lens. Overall, an optical design was achieved that ensures smooth transitions from sharp to blurred areas and minimizes reflections and ghost images in backlit situations. The quiet stepping motor ensures fast, reliable autofocus for both photos and videos

2.
Extension of the I-Series. "Creating images that are more than beautiful".
The SIGMA I-Series consists of full-frame-compatible lenses that offer users of mirrorless systems new, high-quality alternatives. The combination of outstanding optical performance and enormous compactness, which is perfectly suited to today's smaller and lighter mirrorless cameras, opens up new possibilities for the perfect image. SIGMA recognizes that today the choice of cameras is almost endless, especially as more and more people shoot with cell phones. But for many photographers who have more in mind when deciding to buy a camera and lens than just taking any picture, the I-Series lenses offer the ultimate combination of optical performance, convenient handling and compactness.

Since its foundation in 1961, SIGMA has continued to perfect its performance in development and manufacturing technology, taking it to an even higher level in 2012 with the introduction of the Global Vision brand. Based on this, SIGMA pays strict attention to the quality of its products and the feel of their use. In addition, great importance is attached to the pleasure of owning such a product. This is how the I-Series was born.

3.
I-Seriesstands for exceptional manufacturing quality in a compact form All I-Series Lens are pure metal constructions.
The precisely manufactured aluminum components not only give the tube a sleek, elegant finish, but also guarantee excellent durability, which improves the quality of the entire product. The use of metal, even in internal structures, ensures smooth operation and exceptional robustness.

These high-precision components, manufactured using SIGMA's innovative metal processing technology, are also used in SIGMA's cine lenses for professional filmmakers. The attention to haptics and ergonomics makes working with the Lens a pleasure. For example, a small cover ring is installed between the focus and aperture rings to provide a good grip for the fingers when attaching and detaching the lens.

Further product features:
Lens design: 11 elements in 9 groups, with one SLD and three aspherical lens elements
Internal focusing
Compatible with high-speed autofocus
Stepping motor
Compatible with the Lens aberration correction options* of the cameras
*Function only available in combination with supporting cameras. The available corrections may vary depending on the camera model.

Supports DMF and AF+MF
Compatible with AF-Assist (Sony E-mount only)
Super Multi-Layer Coating
Aperture ring
Focus mode switch
Lens hood (LH633-01)
Magnetic metal lens cap (LCF58-01M)
Dust and splash-proof lens mount
Switching between linear and non-linear translation of the focus ring (only for L-Mount)
Compatible with the SIGMA USB Dock UD-11 (sold separately / only for L-mount)
Reflection and ghost minimizing design
Each individual Lens passes through SIGMA's proprietary MTF measurement system
9-blade round aperture
High-precision and robust brass bayonet
"Made in Japan" craftsmanship quality