Sigma has introduced the Sigma BF, a 24.6MP full-frame interchangeable lens camera designed with a radically simple interface. Stripping photography down to its essence, this compact model features just three buttons, a dial, and a shutter release, offering a streamlined experience.
Minimalist Yet Powerful Design
Weighing only 13.7 ounces (388 grams) and measuring 5.1 x 2.9 x 1.4 inches (129.5 x 73.7 x 35.6 mm), the Sigma BF prioritizes user experience. The L-mount system allows seamless lens compatibility while the interface presents core photographic controls on the live view screen. Secondary settings are housed in an optional menu, and system functions reside in a dedicated section.
Photographers can easily adjust shutter speed, aperture, ISO, EV compensation, and color mode with simple touch gestures. This camera is the first mirrorless model to incorporate haptic feedback into key buttons, ensuring precision and comfort.
Innovative Unibody Construction
The Sigma BF boasts the world’s first true unibody camera design, carved from a single aluminum block through a meticulous seven-hour process. This ensures exceptional durability while maintaining a balanced weight with any attached lens.
Built-in storage is another groundbreaking feature. A 230GB SSD allows ample space for 14,000+ JPEGs, 4,300 RAW images, or 2.5 hours of high-quality video. Transferring files is effortless with USB-C connectivity.
High-Performance Imaging
The 24.6MP sensor delivers an ISO range from 100 to 102,400, expandable down to 6. The hybrid autofocus system, blending phase and contrast detection, ensures rapid and accurate focusing. Subject detection effortlessly locks onto people, dogs, and cats.
For videographers, the Sigma BF records up to 6K resolution with L-Log support in H.264 and H.265 formats. Frame rates reach 29.97fps in 6K and 4K, and 119.88fps in 1080p.
Creativity-Enhancing Color Modes
Thirteen unique color modes—including Standard, Warm Gold, Teal, and Monochrome—expand creative possibilities. The rear display, featuring a 2.1-million-dot resolution, ensures a distraction-free shooting experience. A secondary status monitor keeps vital settings visible without cluttering the main screen.
Key Specifications
| Specifications | Details |
|---|---|
| Type | Interchangeable-lens Mirrorless Type Digital Camera |
| Memory Media | Internal Memory (Approx. 230 GB), USB Storage (for Backup) |
| Lens Mount | L-Mount |
| Image Sensor | 35 mm full-frame Back-illuminated CMOS sensor |
| Camera Effective Pixels / Total Pixels | Approx. 24.6 MP / Approx. 25.3 MP |
| Movie Recording Format | MOV: H.264, H.265, L-Log |
| Movie Recording Size / Frame Rate | 6K 29.97 fps, UHD 29.97 fps, FHD 119.88 fps |
| ISO Sensitivity | ISO 100-102400 / Expanded sensitivity ISO 6, 12, 25, 50 |
| Monitor | 3.15 type, Approx. 2.1M dots |
| Color Mode | 13 types: Standard, Rich, Calm, Powder Blue, Warm Gold, Teal and Orange, FOV Classic Blue, FOV Classic Yellow, Forest Green, Sunset Red, Cinema, 709 Look, Monochrome |
| Dimensions (W x H x D) | Approx. 130.1 x 72.8 x 36.8 mm / 5.1 x 2.9 x 1.4 in. |
| Weight | Approx. 388 g / 13.7 oz. (Camera Body Only) |
Release Date and Lens Compatibility
Sigma will launch the BF in black and silver by April 2025, priced at $1,999. Additionally, the Sigma I Series prime lenses will receive updates, including a silver finish for L-mount models and enhanced engravings across all nine black models. The 45mm f/2.8 DG lens will also gain compatibility with the magnetic metal lens cap.
The Sigma BF redefines simplicity in photography, focusing on essential controls and superior performance. Whether for professionals or enthusiasts, this compact powerhouse offers a fresh approach to full-frame photography.
