1/4" Sony Color Super HAD CCD image sensor Speed Dome Camera (with / 22X Zoom, Intelligent Auto Tracking Function), Pan Speed: 360°/ 1s , Focal Length: f3.9 mm ~ f85.9 mm Supports DVR / Camera Communication System (DCCS) Technology Smart Zoom: To automatically zoom in the moving object & Auto-focus zoom lens (KHÔNG CẦN DÂY KHIỂN RS485)