Image Device Color1/4"CCD Rule NTSC PAL Active Pixels 811(H)?08(V)(410.000Pixels) 795(H)?96(V)(470.000Pixels) S/N >48dB Resolution 480 Zoom Ratio 27X:F1.5(W),F3.8(T),f3.25-88mm:Video AF Digital zoom ratio X10(total zoom Ratio x270) Minimum Illumination Color:0.1Lux/B/W:0.01Lux Synchronization System Inter Synchronization/Out Synchronization Camera Control RS232(TTL Level) Zooming Speed 5s mode/7s mode/9s mode OSD Chinese/English Color/Black&White Auto Switch Auto Video Frequency Output complex output75:Y/C separate Camera Identify Code Off,0~255(Total256)