BF (35 mm full-frame) BLACK

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.

• Type

  Type

  Interchangeable-lens Mirrorless Type Digital Camera

  Memory Media

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

  Lens Mount

  L-Mount

• Image Sensor

  Type

  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

   

  Aspect Ratio

  3:2

  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

  RAW

  6016 x 4012

   

  JPEG

  6016 x 4012

• 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)

  Record Format / 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

  AF System / Focus Mode

  Image Plane Phase-Detection AF + Contrast detection system / Single AF, Continuous AF (with moving object prediction function), Manual Focus

  AF Sensitivity Range / AF Mode

  -5~18 EV (F1.4：ISO 100)/1-Point AF, Area AF

  AF Lock

  Half-press the shutter button

  Other Focus Functions

  Subject Tracking AF (Human + Animal, Human, Animal) , AF+MF, Full-time AF+MF, MF Magnification (Full Screen 2x / 4x / 8x) , Focus Peaking, Focus Ring Control (Non-linear, Linear)

• Exposure Control

  Metering System

  Evaluative, Spot Metering

  Metering Range

  -7 ~ 20 EV (50 mm F1.4: ISO 100)

  Still Shooting

  Program AE, Shutter Speed Priority AE, Aperture Priority AE, Manual
  *The above can be changed by setting each of Shutter Speed, Aperture, and ISO Sensitivity to Auto or Manual.

  Movie Shooting

  Program AE, Shutter Speed Priority AE, Aperture Priority AE, Manual
  *The above can be changed by setting each of Shutter Speed, Aperture, and ISO Sensitivity to Auto or Manual.

  ISO Sensitivity (Recommended exposure value)

  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 Compensation

  ±5 EV (in 1/3 stop increments)

  AE Lock

  Operated via touch

  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

• Image Stabilization System

  Electronic Image Stabilization (EIS) for Video Only

• White Balance

  8 types
  (Auto, Auto [Lighting Source Priority] , Incandescent, Fluorescent, Manual [50K steps] , Daylight, Overcast, Shade) , Custom 1-10 settings can be added , AWB lock function

• Shutter

  Electronic shutter

  Shutter Speed

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

  Self Timer

  2 sec., 10 sec. (Countdown Indicator)

• Drive

  Drive Modes

  Single Capture, Continuous, Self-timer Burst, Exposure Bracketing, Focus Bracketing, Interval Timer

  Continuous Drive Speed

  Selectable frame rates (3, 5, 8 fps)

  Number of Recordable Frames

  JPEG: 1000 frames, DNG: 350 frames

• Monitor

  Type / Coverage

  TFT color LCD, Aspect Ratio 3:2, 3.15 type, Approx. 2.1M dots , Electrostatic capacitance system touch panel / Approx. 100%

• 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

• Other Function

  Save / Restore Settings, Webcam, In-camera DNG Development, Still image capture from recorded movie files, Fill Light (Supports only in-camera DNG Development)

• Built-in Microphone / Speaker

  Stereo Microphone / Monaural Speaker

• Display Language

  English, Simplified Chinese, Traditional Chinese, Danish, Dutch, Finnish, French, German, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Russian, Spanish, Swedish

• Interface

  USB Type-C

  USB 10 Gbps (USB 3.2) Compatible (Mass Storage, UVC, UAC, External Video Output, Charging / Power Delivery)

  REMOTE

  Cable Release (via USB)

  External Microphone Terminal

  Supported via USB

  Headphone Output Terminal

  Supported via USB

• Dust and Splash Resistant Structure*

  Provided
  *Although this construction allows the lens to be used in light rain, it is not the same as being waterproof.

• Power

  Li-ion Battery Pack BP-81

  Number of Recordable Still Images

  Approx. 260 images

  Minutes of Recordable Continuous Shooting

  Approx. 60 min.

• 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.

  Weight

  Approx. 446 g / 15.7 oz. (including battery), Approx. 388  g / 13.7 oz. (Camera Body Only)

• Operating Environment

  Operating Temperature

  32 to 104 °F / 0 to +40 °C

   

  Operating Humidity

  85% or less (non-condensing)

• Supplied Accessories

  Pouch

  Li-ion Battery Pack BP-81

  Metal Body Cap (Black / Silver)

  Start Guide

  Limited Warranty

  Warranty Sticker

• Optional Accessories

  Cable Release CR-51

  Battery Charger BC-81

  Hand Strap HS-11B

  Hand Strap HS-11G