Image device: 13-inch Sony Super-HAD CCD IR wavelength: 700 to 1,100nm (built-in 850nm) Minimum illumination: 0.5Lux at F1.6, 0 Lux IR on Lens: 3.7 to 12mm varifocal auto iris DC drive lens Image compression: MJPEGMPEG4 Resolution: D1half, D1CIF Supports Web Browser IE6 & above