ivs
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IVS (optional) ?
Hello, I bought "SD59430U-HN": http://www.aliexpress.com/item/Dahua-4Mp-PTZ-Full-HD-30x-Network-IR-PTZ-Dome-Camera-H-265-with-logo-SD59430U/32657897867.html I see IVS is optional: https://goo.gl/ai9LlF Is that mean camera isn't supporting auto tracking? Thanks