Reasons to choose BF
Released in 2025, BF has about 858 mm² of sensor area, 24.6 MP effective resolution, and a 446 g body. Use these values to narrow the field, not as an overall image-quality score.
Side-by-side comparison
Sigma BF
vs Sony FX2
VS
Sensor area
858 mm²
BF858 mm²
FX2- Area ratio
- 1:1
- Absolute difference
- 0 mm²
- Relative difference
- 0%
The BF and FX2 have the same sensor area. Compare pixel density, sensor architecture, and release generation to understand likely image-quality differences.
Key specification differences
BFMetricFX2
24.6 MPEffective pixels33 MP
35.9 × 23.9Sensor35.9 × 23.9
5.91 µmPixel pitch5.1 µm
34.88 µm²Pixel area26 µm²
2.87 MP/cm²Pixel density3.85 MP/cm²
1Crop factor1
6,016 × 3,384Maximum video4,096 × 2,160
446 gWeight679 g
Internal storageStorageSD/SDHC/SDXC (UHS-II), CFexpress Type A
BP-81 Lithium-Ion battery Li-ion batteryBatteryRechargeable battery pack NP-FZ100
Amber marks the value that is generally preferable in this comparison context. It is not an overall camera score.
How to choose between these cameras
The BF and FX2 have the same sensor area. The BF has the lighter body. The FX2 has the higher effective resolution. The BF and FX2 were both released in 2025. Also consider the lens system and subjects you shoot.
Reasons to choose FX2
Released in 2025, FX2 has about 858 mm² of sensor area, 33 MP effective resolution, and a 679 g body. Use these values to narrow the field, not as an overall image-quality score.