... 4.Varifocal Lens 1/4" SHARP 420TVL Dome Camera Model: KDV-2421M20 SpecificationColor 1/4" SHARP,420 TV Lines Low ... IlluminationColor 1/3" SONY, 420 TV Lines Low IlluminationColor 1/ ... , PM, MD)Color 1/3" SONY, 650TV Lines Low Illumination, DWDR, OSD (DNR, PM, MD)Color 1 ... PM, MD)Color 1/3" SONY, 700TV Lines Low Illumination WDR, 3D-DNR, OSD(DNR, PM, MD ...