... optical zoom lens 2,10x digital zoom, 3,Auto focus, 4,800,000 pixel 520TV lines 5,Protable ModelAV-2800TLensF=1.6 ... scopeMAX:280*220mmEffective pixel800,000Zoom22 optical power zoom, 10 multiple digital zoomApertureAutomatic CCD camera 1/4 CCD,PLA color systemMIN illuminance1 ... light,LED*2, bottom light:LEDClose dimension460mm*310mm*100mmweight3.5kg Protable digatal Visualizer& projector(AV-2800T)