intelligent IP ptz dome camera 1.built in video analytics, 2.autonomous PTZ tracking, 3.optical zoom 26X,digital zoom 9X. BE-PT423W ... Image stabilization while zooming Focusing system: Auto (sensitivity: normal, low), one-push AF, manual, infinity, interval AF, zoom trigger AF Flicker ... 28dB, 2dB steps) White balance: Auto, ATW, Indoor, Outdoor, one-push, Manual Minimum illumination: 1.0lux (F1.6~3.8 ...