Model FD-838CHD Image Sensor 1/3"SONY Colour CCD Pixels PAL:752(H)x582(V) NTSC:752(H)x492(V) Signal Format PAL/NTSC Horizontal Resolution 420TVL Min Illumination Colour 0.01Lux/F1.2;B/W 0.001/F1.2 Lens 3.8mm~83.6mm Optics Zoom 22X BLC Auto AGC Auto Electronic Shutter 1/50(1/60)~1/100,000 Second White Balance Auto S/N Ratio >52dB