Model Name RYK-272F/472F Image Device 1/3" Color Sony Super HAD (Hi-Res.) Picture Elements NTSC:768x494, PAL:752x582 Resolution 470 TVL Min. Illumination 0.2 Lux / F1.2 S/N Ratio More than 48dB Electronics Shutter NTSC:1/60~1/100,000, PAL:1/50~1/110 ...