Camera Details
Sigma
BF
$1,999~
MSRP (prices vary)
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Released: April 24, 2025
Who it's for
The Sigma BF is a 24.6MP full-frame mirrorless camera, well suited to low-light and events. Here's where it fits and what to keep in mind.
Best for
- ✓Video and filmmaking — 4K up to 30p, 10-bit internal and Log.
- ✓Low-light and events — a large full-frame sensor and ISO to 102,400.
Keep in mind
- !No in-body stabilisation — you'll lean on stabilised lenses for slow handheld shots.
- !Single card slot — no in-camera backup, which matters for critical paid jobs.
Full-Frame
Sensor
24.6MP
Resolution
6K
Max Video
−
IBIS
8fps
Burst
1,215
AF Points
Full Specifications
Imaging
| Sensor Type | BSI CMOS |
|---|---|
| Sensor Size | Full-Frame |
| Image Processor | − |
| Effective Resolution | 24.6 MP |
| Lens Mount | Leica L |
Exposure Control
| ISO Range (Native) | 100 – 102400 |
|---|---|
| ISO Range (Extended) | − |
| Mechanical Shutter | − |
| Electronic Shutter | 1/25600 |
| Flash Sync Speed | − |
| Built-in Flash | No |
Still Image Capture
| Continuous Shooting | 8 fps |
|---|
Video Capture
| Max Resolution | 6K |
|---|---|
| 8K Recording | − |
| 4K Recording | Up to 30p |
| 1080p Recording | Up to 120p |
| 10-bit Internal | Yes |
| Recording Limit | No limit |
| Log Profiles | Sigma Log |
| Built-in Mic | Mono |
| Headphone Jack | No |
| Mic Input | No |
| HDMI Output | − |
Focus
| Phase Detect Points | 1,215 |
|---|---|
| Contrast Detect Points | − |
| Low Light AF | − |
| Eye AF | Yes |
| Animal AF | No |
| Vehicle AF | No |
Viewfinder
| EVF Type | − |
|---|---|
| EVF Resolution | − |
| EVF Magnification | − |
Monitor
| LCD Size | 3.2" |
|---|---|
| LCD Resolution | 2.10M dots |
| LCD Type | Fixed |
| Touch Screen | Yes |
Interface
| Wi-Fi | Wi-Fi |
|---|---|
| Bluetooth | − |
| USB | USB-C |
| Memory Card Slots | None (230GB internal storage) |
| GPS | No |
General
| Price (MSRP) | $1,999 |
|---|---|
| Body Material | Aluminum (unibody) |
| Dimensions | 130.1×72.8×36.8 mm |
| Weight | 446g (15.7 oz) |
| Weather Sealed | Yes |
| In-Body Stabilization | No |
| Battery Life (EVF) | − |
| Battery Life (LCD) | 260 shots |
| Battery Type | BP-81 |
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