*35mm fixed iris M12 board lens.*1/3" format, M12 Mount, F2.0.*About 11~13 degrees view of angle.*Extension adapter is provided to lengthen mount interface.*Mini lens, small size.M12 Lens: 35mm fixed iris M12 board macro lens, available for more clear and high-quality pictures.This CCTV camera lens allows more of the scene to be included in the photograph. It performs very well during the day with IR filter. (IR filter is not included)With extension adapter: to lengthen mount interface.Mini size: 25 x 23mm small size with mini lens, easy to carry.11degree horizontal viewing angle. 1/3" format, M12 Mount, F2.0.*1/3inch format, M12 Mount, F2.0.