Q-See QSPT10X Weatherproof PTZ Speed Dome with 10x Optical Zoom / 10x Digital Zoom OSD Function 480 TV Lines Resolution Optical Zoom: 10X / Digital Zoom: 10X 1/4" Sony Super HAD CCD RS-485 Control; 6 Auto Cruise Options; Pan Speed 0.5~30 /s; Tilt Speed 0.5~30 /s; Preset: 32