Focal Length & FOV
L10/L20 model:
2.8 mm: horizontal FOV: 93.9°, vertical FOV: 51.7°, diagonal FOV: 109.3°
3.7 mm: horizontal FOV: 75.5°, vertical FOV: 41.6°, diagonal FOV: 87.3°
L30 model:
2.8 mm: horizontal FOV: 107.8°, vertical FOV: 57.9°, diagonal FOV: 126.7°
4 mm: horizontal FOV: 82.8°, vertical FOV: 45.1°, diagonal FOV: 98°
Aperture
L10/L20:
2.8 mm: F2.5
3.7 mm: F2.5
L30:
2.8 mm: F2.0
4 mm: F2