Tristan, tell us about how this crazy idea came to you.
I actually shot something similar a few years ago. I had gone down into a crevasse and skiers were jumping above me and making shapes. At the time I had shot everything with natural lighting, and I said to myself that it would be cool to redo this shot with flash; the results with the vivid ice would be awesome. But it still took me years before I could pull everything together in the right conditions.
You could say that the images have a slightly surreal look. What are the conditions you need to achieve a result like that?
The star of the shot is the crevasse itself. It had to be wide, but not too wide or the skiers wouldn’t make it across. It also had to be deep enough to be impressive, but not so deep that the skiers would look too small in the photo. Above all, if the crevasse was too deep it could be a nightmare to manage the flashes and to achieve the lighting effects I wanted. It also had to look good, and be safe enough so that I could go down to the bottom and move around freely. Finally, it had to allow the skiers to get up enough momentum to make the jump, and to let them land properly afterwards.