This year
NHK's balloon camera is cheaper than a crane and just as steady | The Verge
The Japan Broadcasting Corporation, or NHK, has developed a camera-carrying balloon capable of steady aerial shots that would previously have been done from a crane. The helium-filled balloon, which can rise to heights of 300 meters but would likely operate at 30 to 50 meters, is attached to a four-axis gimbal that keeps the camera steady even when the balloon moves.
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