Plan your shoot
and your big wall expedition.
This is the most important part of the shoot. You will need to be prepared and experienced enough from a personal safety standpoint to even be able to think about pulling this off. Being versed in rope management, having shot plenty of single pitch roped climbing, and being competent at jugging is a good starting point before even imagining setting foot on a big wall, much less documenting in the vertical world. You have to keep yourself and your party safe first, and then document second.
Once you have the safety side covered, you will need to strategize with your subjects about how many days you anticipate being on the wall and make sure you have a good plan for rigging and hauling the amount of food, water, clothing, and gear you will need for the expedition.
This will also dictate your camera equipment and your logistics for your shoot. For example: you will need to prepare enough media and battery power for a long expedition. With your subject, plan the entire project from start to finish. Envision the approach, the climb, the descent and all the little details that the climbers will be experiencing on the wall so that you are prepared with a vision and strategy for the shoot. Be ready for a long time on the wall and a lot of down time, which you can make good use of by shooting interviews, prepping gear and rigging for the next pitches, and eating meals.
But even the most planned shoots come with a ton of unexpected scenarios for both yourself and your subjects. You can’t plan what will happen, but you can always expect the unexpected.