This is some very cool drone footage taken by Skynamic of the 2015 Ironman in Frankfurt. There are a lot of people competing in this event, and that is really noticeable from the Arial view.
Ironman Frankfurt 2015 aerial footage. Shot exclusively for Hessischer Rundfunk www.hr-online.de
The drone team on Facebook: https://www.facebook.com/skynamic
Done with http://www.atomos.com/shogun/
Pilot: Ferdinand Wolf
Drohnen Kamera: Gabriel Manz