The lens is monofocal 12 mm, the viewing angle is 22°. The wavelength is 850nm, it sees IR illumination.

Lens mount, M12 seat.

The lens is monofocal 16 mm, the viewing angle is 17°. The wavelength is 850nm, it sees IR illumination.

Spring for correct and reliable focusing of the lens, M12 seat. The picture shows the spring itself (left) and how it is mounted on the M12 lens (right).

Varifocal lens 2.8-12 mm. 850nm wavelength, sees IR illumination. Picture may vary.

Varifocal lens 5.0-50 mm. 850nm wavelength, sees IR illumination. Picture may vary.

Varifocal auto iris lens F = 2.8-12 mm. 850nm wavelength, sees IR illumination.

Lens mount, seat M14.