CCTV Lens, fixed lens,CCD Lens, CCD Camera Lens 4mm Lens Product name : CCD Lens ,fixed Lens ,CCTV Lens, Camera Lens ,Security lensDescription: I mage format1/3"MountCSFocal length4mmApertureF1.6Angle of view70.6°ManipulationFocusManualApertureFixedSizeΦ28×25 Fixed CCTV Lens