Here's what James has to say:

"This film is the sum of two years work that started life as a simple GoPro only climbing film, filmed mostly on the Hero 2, with the Hero 3 Black also getting a taste of the action. However, it soon became something much bigger and before long we had DSLRs, LED lights and more. We filmed scenery and long shots with an old school Canon HV20 and lets not forget the amazing Canon 5D Mark II that we used right at the end of our 2 year project."