Hikvision sees how big an object can be tracked by a parabolic camera at high altitude.

Less than two meters. The original intention of this equipment is to reduce high-altitude parabolic objects, but the equipment is not designed to lock large items, only small items, so Hikvision high-altitude parabolic camera can track objects below two meters. The object tracking function is the biggest feature of high-altitude parabolic monitoring, which can track the trajectory of falling objects.