BF Camera
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THE BEAUTY OF A 
SIMPLE THING

With the Sigma BF, we 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. We 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.

ULTIMATE IN MINIMALISM

SILVER

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. We 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 center 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. The BF is the first mirrorless camera to feature pressure-sensitive haptic buttons*, resulting in minimal physical wear while still offering the precise and tactile sensation of conventional mechanical buttons.

*As of February, 2025 by SIGMA.

ENDURING FORM

The BF is designed to last. It is the first camera in history* to feature a true unibody, with each camera carved from a single, solid block of aluminum ingot over the course of seven hours. The weight of its seamless all-metal body harmonizes perfectly with any attached lens, while its shape, button placement and precision-cut front texture guarantee secure handling.

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. 

SIGMA BF IS LAUNCHING WITH 9 LENSES IN MATCHING COLORS

UP TO 6K VIDEO

Some stories are best told in moving images. With 6k recording, powerful HEVC encoding, and 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. 

CAPTURED WITH THE BF

The cameras we make are only part of the photographic story. What really counts are the wonderful images that photographers create with them. We invited Ola Rindal, Fumi Nagasaka, and Sarah van Rij & David van der Leeuw to produce new work with the Sigma BF. Each artist captures the subtleties of everyday moments with their unique perspective and visual language. We hope you enjoy their photos as much as we did.

OLA RINDAL

Ola photographed moments that go unnoticed unless one pays attention. In December 2024, during journeys between his hometown, Paris, and his birthplace, Norway, he captured people and objects in states of transition.

EXPLORE

SARAH VAN RIJ & DAVID VAN DER LEEUW

Dutch photographers Sarah van Rij and David van der Leeuw present a new series shot in the city of Utrecht. Relying on basic photographic techniques such as framing and impeccable timing, they transformed the visual chaos of urban transportation into humorous, slightly surreal compositions.

EXPLORE

FUMI NAGASAKA

For Japanese-born, New York-based artist Fumi Nagasaka, photography is a tool for connection. In December 2024, she took images in New York and Texas as part of an ongoing project to document everyday life in America.

EXPLORE

New

SIGMA BF

As low as $2,199
SKU: #
C46/C47
Color
Choose a color to see availability
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  • Lens not included (body only)
  • Simple, clear, and completely new user interface
  • Clear live view and status monitor
  • Minimal controls and haptics
  • Unibody structure
  • Internal storage
  • Various color modes
  • Evolved autofocus
  • Video shooting (6K, L-Log)
  • Equipped with L-Mount
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AWARDS

  • TIPA World Award - Best Premium Camera 2025
Type
Type Interchangeable-lens Mirrorless Type Digital Camera

Memory Media Internal Memory (Approx. 230 GB) , USB Storage (for Backup)

Lens Mount L-Mount

Focus - AF System / Focus Mode Image Plane Phase-Detection AF + Contrast detection system / Single AF, Continuous AF (with moving object prediction function), Manual Focus
Image Sensor
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]
File Size
File Size RAW 6016 x 4012

File Size JPEG 6016 x 4012
Crop
Crop 3840 x 2560 (Equivalent to Approx.1.5 times the focal length)
Movie Recording Format
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* (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
Focus
Focus - AF Sensitivity Range -5~18 EV (F1.4:ISO 100)
1-Point AF, Area AF, Subject Tracking AF (Human + Animal, Human, Animal)

Focus - AF Lock Half-press the shutter button

Focus - Other Focus Functions AF+MF, Full-time AF+MF, MF Magnification (Full Screen, PIP (2x / 4x / 8x) ), MF Auto Review, Focus Peaking, Focus Ring Control (Non-linear, Linear)
Exposure Control
Metering Mode Evaluative, Spot Metering

Exposure Control - Still Image Shooting Mode (P) Program AE, (S) Shutter Speed Priority AE, (A) Aperture Priority AE, (M) Manual

Exposure Control - Movie Shooting Mode (P) Program AE, (S) Shutter Speed Priority AE, (A) Aperture Priority AE, (M) Manual

Exposure Control - ISO Sensitivity Base ISO
[Still] ISO 320
[Movie] MOV: ISO 320, Log: ISO 1250

Settable Range
ISO 100-102400 / Expanded sensitivity ISO 6, 12, 25, 50

Exposure Control - Exposure Compensation ±5 EV (in 1/3 stop increments)

Exposure Control - AE Lock Operated via touch

Exposure Control - Exposure Bracket 3 shots, 5 shots stage exposure ±3 EV (1/3 Step, Standard→Underexposure→Overexposure) (Sequence changeable)

Exposure Assist Brightness Level Monitor (Histogram) , Zebra Pattern, False Color

Exposure Control - Metering Range -7~20 EV (50mm F1.4: ISO 100)
Image Stabilization System
Image Stabilization System Electronic Image Stabilization (EIS) for Video Only
White Balance
White Balance 8 types
(Auto, Auto [Lighting Source Priority] , Incandescent, Fluorescent, Manual [50K steps] , Daylight, Overcast, Shade, Flash) , Custom 1-10 settings can be added , AWB lock function
Shutter
Shutter - Shutter Type Electronic shutter

Shutter - Shutter Speed 1/25600 - 30 seconds, Bulb (up to 5 minutes)

Self Timer 2 sec., 10 sec. (Countdown Indicator)
Drive
Drive - Drive Modes Single Capture, Continuous, Exposure Bracketing, Focus Bracketing, Interval Timer

Drive - Continuous Drive Speed Selectable frame rates (3, 5, 8 fps)

Drive - Number of Recordable Frames JPEG: 1000 frames, DNG: 350 frames
Monitor
Monitor / Coverage TFT color LCD, Aspect Ratio 3:2, 3.15 type, Approx. 2.1M dots , Electrostatic capacitance system touch panel / Approx. 100%
Color Mode
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
Built-in Microphone / Speaker
Built-in Microphone / Speaker Stereo Microphone / Monaural Speaker
Display Language
Display Language English, Simplified Chinese, Traditional Chinese, Danish, Dutch, Finnish, French, German, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Russian, Spanish, Swedish
Interface
Interface USB Type-C USB 10 Gbps (USB 3.2) Compatible (Mass Storage, UVC, UAC, External Video Output, Charging / Power Delivery) REMOTE: Supports Cable Release External Microphone and Headphone Output: Supported
Dust and Splash Resistant Structure*
Dust and Splash Resistant Structure* Provided* Although this construction allows the camera and lens to be used in light rain, it is not the same as being waterproof.
Power
Power - Source Li-ion Battery Pack BP-81

Power - Number of Recordable Still Images Approx. 260 images

Power - Minutes of Recordable Continuous Shooting Approx. 60 min.
Dimensions and Weight
Dimensions and Weight - 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.

Dimensions and Weight - Weight Approx. 446 g / 15.7 oz. (including battery) , Approx. 388 g / 13.7 oz. (Camera Body Only)
Operating Environment
Operating Environment - Operating Temperature 32 to 104 °F / 0 to + 40 °C

Operating Environment - Operating Humidity 85% or less (non-condensing)
Supplied Accessories
Supplied Accessories Li-ion Battery Pack BP-81
Metal Body Cap (Black / Silver)
Start Guide
Limited Warranty
Warranty Sticker
Optional Accessories
Optional Accessories Cable Release CR-51
Battery Charger BC-81
Hand Strap HS-11B
Hand Strap HS-11G