Sigma has announced its new Sigma BF full-frame camera with a minimalistic unibody design and a compact form factor. According to the company, the camera is the world’s first to feature a true unibody design language. In terms of features, the camera comes with a 26.4MP 35mm full-frame setup and has a back-illuminated CMOS sensor. It supports ISO range from 100 to 102,400 and has expanded sensitivity settings down to 6,12, 25 and 50.
Sigma BF: Price and availability
Sigma BF will be available starting April 2025 and is priced at $1,999 (approximately Rs 164,919.00). India launch details of the camera haven’t been confirmed yet and the company has not hinted the availability expansion of the camera in other regions.
Sigma BF: Specifications
| Specification | Details |
| Type | Interchangeable-lens Mirrorless Digital Camera |
| Memory Media | Internal Memory (Approx. 230 GB), USB Storage (for Backup) |
| Lens Mount | L-Mount |
| Image Sensor | 35mm full-frame (35.9mm x 23.9mm) 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 (Exif 3.0), RAW (DNG) + JPEG |
| 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. 1.5x 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 (No 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 (Moving Object Prediction), 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 shutter button |
| Other Focus Functions | AF+MF, Full-time AF+MF, MF Magnification (2x / 4x / 8x), MF Auto Review, Focus Peaking, Focus Ring Control (Non-linear, Linear) |
| Metering Mode | Evaluative, Spot Metering |
| Metering Range | -7~20 EV (50mm F1.4: ISO 100) |
| Exposure Mode (Still) | Program AE (P), Shutter Speed Priority AE (S), Aperture Priority AE (A), Manual (M) |
| Exposure Mode (Movie) | Program AE (P), Shutter Speed Priority AE (S), Aperture Priority AE (A), Manual (M) |
| ISO Sensitivity | Base: ISO 320 (Still), ISO 320 (Movie), ISO 1250 (Log) Settable: ISO 100-102400 (Expanded: ISO 6, 12, 25, 50) |
| Exposure Compensation | ±5 EV (1/3 stop increments) |
| AE Lock | Operated via touch |
| Exposure Bracket | 3 or 5 shots, ±3 EV (1/3 step, sequence changeable) |
| Exposure Assist | Brightness Level Monitor (Histogram), Zebra Pattern, False Color |
| Image Stabilization | Electronic Image Stabilization (EIS) for Video Only |
| White Balance | 8 types (Auto, Auto Lighting Source Priority, Incandescent, Fluorescent, Manual, Daylight, Overcast, Shade, Flash), Custom 1-10, AWB Lock |
| 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, Exposure Bracketing, Focus Bracketing, Interval Timer |
| Continuous Drive Speed | 3, 5, 8 fps |
| Number of Recordable Frames | JPEG: 1000 frames, DNG: 350 frames |
| Monitor / Coverage | 3.15-inch TFT LCD, 3:2 aspect ratio, 2.1M dots, Touchscreen, Approx. 100% |
| Color Mode | 13 types (Standard, Rich, Calm, Powder Blue, Warm Gold, Teal & Orange, FOV Classic Blue, FOV Classic Yellow, Forest Green, Sunset Red, Cinema, 709 Look, Monochrome) |
| Other Features | Save/Load Settings, Webcam, In-camera DNG Development, Still Image Capture from Movies, Fill Light (In-camera DNG Development only) |
| Built-in Microphone / Speaker | Stereo Microphone / Mono 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) |
| Remote | Supports Cable Release |
| External Microphone & Headphone Output | Supported |
| Dust & Splash Resistance | Yes (Not 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 (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 (with battery), 388 g (Body Only) |
| Operating Temperature | 0 to 40°C (32 to 104°F) |
| Operating Humidity | 85% or less (non-condensing) |
| Supplied Accessories | 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 |
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