1/3" CCTV Wide Angle 4mm Lens F1.2 IR for CCTV Board Video Camera Product Name : CCTV Lens;Fit for : CCTV Camera Focal Length : 4mm;Mount Type : CS Format : 1/3";Aperture(F) : 1.2 Mount Thread Dia. : 25mm/1";Size (without cap) : 30 x 28mm / 1.2" x 1.1"(D*L) Weight : 36g;Package Content : 1 x CCTV Lens