On this particular day, in early 2014, the wind was absolutely howling, as it does when the clouds look best on Table Mountain. I apologise for the bad sound! Where necessary I added subtitles.
In short: I used the Triggertrap MD3-N3 Mobile Dongle and N3 Cable Kit Remote Release for Canon (Red) with my Samsung Galaxy Note, a Canon 5D Mk II with a variety of lenses, a Manfrotto tripod and a sandbag. I also mention the nice little cell phone holder designed for bicycles, that holds the phone in place, as it triggers the camera. For your convenience here is a link to where you can get the Trigger Trap.
Settings: 1 second intervals
The reason is that the clouds were actually moving quickly as it is, and if I made the intervals any longer, at 25 frames per second in the final render, the clouds would move too quickly and look comical, not dramatic.
Render: 25 frames per second, 1080p
And here is the music video I ended up using it in:
The clips are also available as stock footage directly from me. Please contact me for pricing.