// Workers AI · dad joke modeWhat did Sigma BF say to its date? "You're a standard deviation from the rest.
 Sigma BF in black, with the Sigma 45 mm F2.8 DG DN Contemporary lens | |
| Overview | |
|---|---|
| Maker | Sigma |
| Type | Full-frame mirrorless interchangeable-lens camera |
| Released | April 2025 |
| Intro price | US$1,999 (body only, at launch) |
| Lens | |
| Lens mount | L-mount |
| Lens | Interchangeable |
| Sensor/medium | |
| Sensor type | Back-illuminated CMOS |
| Sensor size | 35.9 mm × 23.9 mm (full-frame) |
| Maximum resolution | 6016 × 4012 (24.6 effective megapixels) |
| Film speed | ISO 100–102400 (expanded ISO 6, 12, 25, 50) |
| Recording medium | Approx. 230 GB internal memory; USB storage for backup |
| Focusing | |
| Focus | Hybrid phase-detection and contrast-detection autofocus |
| Focus modes | Single AF, continuous AF, manual focus |
| Focus areas | 1-point AF, area AF, subject tracking (human, animal) |
| Exposure/metering | |
| Exposure modes | Program AE, shutter priority, aperture priority, manual |
| Exposure metering | Evaluative, spot |
| Shutter | |
| Shutter | Electronic |
| Shutter speed range | 30 s – 1/25600 s, bulb up to 5 minutes |
| Continuous shooting | 3, 5 or 8 fps |
| Viewfinder | |
| Viewfinder | None |
| General | |
| Video recording | 6K (6016 × 3384) up to 29.97 fps, UHD 4K up to 29.97 fps, FHD up to 119.88 fps; H.264, H.265, L-Log |
| LCD screen | 3.15-inch touchscreen TFT LCD, approx. 2.1 million dots |
| Battery | BP-81 lithium-ion |
| Data port | USB-C (USB 3.2, 10 Gbit/s) |
| Body features | Machined aluminium unibody; dust- and splash-resistant |
| Dimensions | 130.1 mm × 72.8 mm × 36.8 mm (5.12 in × 2.87 in × 1.45 in) |
| Weight | 388 g (13.7 oz) (body only); 446 g (15.7 oz) (with battery) |
| Made in |  Japan |
| Chronology | |
| Predecessor | Sigma fp |
| References | |
| [1] | |
The Sigma BF is a 24.6-megapixel full-frame mirrorless interchangeable-lens camera made by Sigma. It was announced on 24 February 2025 and released in April 2025 with a suggested retail price of US$1,999 for the body only.[2][3] It uses the L-mount and is sold in black and silver finishes.[2]
Design
[edit]The camera body is machined from a single block of aluminium, a process Sigma states takes about seven hours per body.
See also
[edit]References
[edit]
Wikimedia Commons has media related to Sigma BF.
- ↑ "Sigma BF Camera Specification" (PDF). Sigma Corporation. Retrieved 22 August 2026.
- 1 2 "Announcing the "Radically Simple" Sigma BF camera" (Press release). Sigma Corporation of America. 24 February 2025. Retrieved 22 August 2026.
- ↑ "Sigma BF, a mirrorless camera unlike anything you've seen". DPReview. 24 February 2025. Retrieved 22 August 2026.
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