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I had the chance to be part of a two man team that documented a company retreat in the Maldives. We spent a week shooting underwater, glidecam, and aerial video.
To learn more about the aerial video setup I recommend visit: camerastupid.com/building-aerial-video-drone-fleet/
5D Mark III
GoPro Hero 3+
Phantom 2 with Zenmuse H3-3D Gimbal
Aquatech underwater enclosure