Fit most board cameras (with or without housing)
Specifications:

1. mount: M12 x 0.5
2. BFL: 4.5mm
3. focal length: 2.8mm
4. iris / aperture: fixed F2.0
5. viewing angle:
   1. 1/3" CCD or CMOS sensor: 94°
   2. 1/4" CCD or CMOS sensor: 77.5°
6. dimensions: Ø 14.8 x 15.11mm