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Sigma BF (Body)

C46900 / C47900

$2,899.95

Price subject to adjustment" Release Date: Late April 2025

The Beauty of a simple thing 

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C46900 - Black
$2,899.95

C47900 - Silver
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Description

With the Sigma BF, Sigma present an uncompromising new vision for the digital camera. Stripped to the essence but packed with power, innovative yet rooted in the origins of photography, it is designed to accompany you throughout your day and to capture the spontaneous beauty of everyday life. The BF balances performance with simplicity and returns the focus to what matters most: your photographs.

RADICAL SIMPLICITY
The Sigma BF’s most important feature is its simplicity. Sigma wanted to create the easiest camera to use, inspired by the humble beginnings of the camera obscura. While the lens remains the soul of photography, the camera still profoundly shapes the images you take – directly, indirectly, even subconsciously. Without compromising on features or performance, the BF’s design cuts out everything that distracts from your interaction with the image. From its aluminum unibody to its simplified controls and streamlined menu, the BF embodies a pure photographic experience free of frustration.

SEAMLESS INTERACTION
The Sigma BF represents a new, more intuitive way to use a camera. It is streamlined to make the act of photography as effortless as possible. Sigma have replaced the shooting mode dial – itself a holdover from the days of film photography – with direct access to the five elements that decide the photograph. Shutter speed, aperture, ISO, EV compensation and color mode are all immediately available at the touch of a finger. The new Status Monitor displays the currently active setting, so the screen provides an unobstructed view of the subject.

CLEAR VIEW
The BF's high-resolution screen provides a distraction-free view of all necessary information – and nothing more. With one simple setting, it shows only the live view image, with the five key elements – shutter speed, aperture, ISO, EV compensation and color mode – displayed when you are ready to press the shutter button. All other options and settings are accessed via just three simple menu screens.

AT A GLANCE
The innovative Status Monitor displays the active setting, highlighting exactly what you need to know without distraction.

TACTILE CONTROL
With just three buttons and a dial pad, the BF’s redesigned user interface makes adjustments instant and intuitive, leaving your attention on the scene and not the settings. As the first mirrorless camera*, the BF features pressure-sensitive haptic buttons, resulting in minimal physical wear while still offering the precise and tactile sensation of conventional mechanical buttons.

DECEPTIVELY POWERFUL
Simplicity does not mean limitation. The Sigma BF is packed with advanced technology to expand your creative possibilities. Its powerful full-frame sensor delivers exceptional image quality, while the fast, reliable hybrid autofocus system keeps subjects in focus.


HIGH RESOLUTION VIDEO
Some stories are best told in moving images. With 6k recording, powerful HEVC encoding, L-Log support and up to 120 frames per second, the Sigma BF provides filmmakers with a nimble, versatile camera to capture and refine their vision.

FULL-FRAME SENSOR
The BF's 35mm full-frame sensor means stunning details, exceptional image quality, wide dynamic range and brilliant low-light performance. The large sensor size also translates to a shallower depth of field to separate subject and background, and allows the use of high-quality full-frame lenses.

INTERNAL STORAGE
The SD card slot is replaced by 230GB of internal memory, capable of storing more than 14 000 JPEG files, 4 300 Lossless compression RAW images or 2.5 hours of video at the highest-quality setting, with the USB-C port offering fast charging and data-transfer speeds.

 

Technical Data

Specification 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 (35.9 mm x 23.9 mm) Back-illuminated CMOS sensor
Camera Effective Pixels / Total Pixels Approx. 24.6 MP / Approx. 25.3 MP
Still Image File Format Lossless compression RAW (DNG) 14-bit / JPEG (Exif3.0), RAW(DNG) + JPEG: recording is possible
Image Aspect Ratio [21:9], [16:9], [3:2], [A Size], [4:3], [6x7], [1:1]
Still Image File Size (RAW) 6016 x 4012
Still Image File Size (JPEG) 6016 x 4012
Crop 3840 x 2560 (Equivalent to Approx.1.5 times the focal length)
Movie Format MOV: H.264, H.265, L-Log
Audio Format Linear PCM (4ch 48 kHz / 16-bit: Max)
Movie Recording Size / Frame Rate 6K (6016 x 3384) / 23.98, 25, 29.97 fps *Cannot be used in conjunction with EIS
UHD 4K / 23.98, 25, 29.97 fps
FHD / 23.98, 25, 29.97, 50, 59.94, 100, 119.88 fps
Continuous Shooting Enable Time 2 hours
AF System / Focus Mode Image Plane Phase-Detection AF + Contrast detection system / Single AF, Continuous AF, Manual Focus
AF Sensitivity Range / AF Mode -5~18 EV (F1.4:ISO 100), 1-Point AF, Area AF, Subject Tracking AF (Human + Animal, Human, Animal)
AF Lock Half-press the shutter button
Other Focus Functions AF+MF, Full-time AF+MF, MF Magnification, MF Auto Review, Focus Peaking, Focus Ring Control
Metering Mode Evaluative, Spot Metering
Metering Range -7~20 EV (50mm F1.4: ISO 100)
Exposure Mode (Still & Movie) (P) Program AE, (S) Shutter Speed Priority AE, (A) Aperture Priority AE, (M) Manual
ISO Sensitivity ISO 100-102400 / Expanded ISO 6-50
Exposure Compensation ±5 EV (in 1/3 stop increments)
AE Lock Operated via touch
Exposure Bracket 3 or 5 shots ±3 EV (1/3 Step)
Exposure Assist Brightness Monitor, Histogram, Zebra Pattern, False Color
Image Stabilization Electronic Image Stabilization (EIS) for Video Only
White Balance 8 types including Auto, Daylight, Shade, Flash, Custom 1-10
Shutter Electronic shutter
Shutter Speed 1/25600 - 30 sec, Bulb (up to 5 min)
Self Timer 2 sec., 10 sec. (Countdown Indicator)
Drive Modes Single, Continuous, Bracketing, Interval Timer
Continuous Drive Speed Selectable: 3, 5, 8 fps
Number of Recordable Frames JPEG: 1000 frames, DNG: 350 frames
Monitor 3.15-inch TFT LCD, Approx. 2.1M dots, Touchscreen
Color Mode 13 types including Standard, Monochrome, Cinema, Teal and Orange
Other Features Webcam, In-camera DNG Development, Still Capture from Movie
Microphone / Speaker Stereo Microphone / Mono Speaker
Display Language English, Chinese, French, German, Japanese, etc.
USB Interface USB Type-C (USB 3.2, 10 Gbps), External Video Output, Power Delivery
Dust & Splash Resistance Yes
Power Li-ion Battery Pack BP-81
Battery Life (Still) Approx. 260 images
Battery Life (Video) Approx. 60 min.
Dimensions (W x H x D) 130.1 x 72.8 x 36.8 mm / 5.1 x 2.9 x 1.4 in.
Weight 446 g / 15.7 oz. (with battery), 388 g / 13.7 oz. (Body only)
Operating Temperature 32 to 104 °F / 0 to 40 °C
Operating Humidity 85% or less (non-condensing)
Included Accessories Battery, Metal Body Cap, Start Guide, Warranty

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