... 4.Varifocal Lens 1/3" SONY 420TV New IR Camera Model: KDV-633M20 SpecificationColor 1/4" SHARP, ... Low Illumination, DWDR, OSD (DNR, PM, MD)Color 1/3" SHARP, 700TV Lines Low Illumination DWDR, OSD ... (DNR, PM, MD)Color 1/3" SONY, 700TV Lines Low Illumination,DWDR,OSD ... /SHARP CCDOptional :700/650/600/420TV LinesIR LED: 5X21PCS IR LED working distance: 20M 3-Axis bracket built ...