Meet the Zenmuse Z3 from DJI: an aerial zoom camera with up to 7x zoom, allowing operators to zoom on subjects from a safe distance. The camera is compatible with the Inspire 1, Matrice 100 and Matrice 600 drones. With Lightbridge 2, you get a range of up to 3.1 miles for HD transmission.
The Zenmuse Z3 combines with the DJI GO app to provide you with a live feed and ability to change settings, capture photos or video, and zoom in/out. More information is available here.