Ruth's sister 3.6mm M12 internal power cable

3.6 mm M12 surveillance lens

The Ruth's sister 3.6 mm M12 lens is a fixed-focal-length optic designed for 1080P security cameras. It mounts directly to an M12 thread and covers a 1/2.7 inch sensor format with a 75 degree horizontal field of view. The F1.8 aperture gathers ample light for day or night monitoring.

Installers upgrading fixed-lens cameras

This unit suits technicians replacing a damaged or fogged lens on an existing M12-mount 1080P module. It will not serve builders who need varifocal adjustment, motorised zoom, or a different focal length for wider or narrower coverage. Buyers requiring auto-iris control or IR-corrected optics should look at alternative lens types.

Verify mount, sensor and resolution first

Confirm the camera board uses an M12 thread and a 1/2.7 inch sensor before ordering. Ensure the recorder or encoder supports 1080P input so the 2.0 megapixel resolution is fully utilised. Check that the operating range of minus 20 to plus 80 degrees Celsius matches the installation environment.