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