1. Product lamge 23x Optical Zoom 540TVL Res I 3 9mm 89 7mm Lens QD54231Z Features High Resolution 540TVL Camera Weatherproof cameras for indoor or outdoor use 23X optical zoom 10X digital zoom OSD Function 3D Noise reduction 0 01 LUX Auto amp Manual Exposure Control Specification Cameras Camera Cables 60 Feet of Cable with Each Camera Camera Model QD54231Z Weatherproof Weatherproof Indoor amp Outdoor Horizontal Resolution 540 TV Lines Image Sensor Sony Super HAD II CCD Color Lens 3 9mm Lens to 89 7mm Lens Mount Dome www Q See com