This weekend I am going to try my first real attempt at a photo shoot in a pit cave and I am hoping to get some advice on how to go about it. I want to photograph from the bottom of the pit looking upward with a climber on rope. My plan is to have the climber take a flash up the rope and stop at intervals to flash the pit.
The main question I have is how to control the camera. Should I put the camera on bulb mode and take one long exposure, or should I take a series of photographs and stitch them together in photoshop later? If I do the stitching method should I keep the camera in one fixed position, or would it be better to pan the camera upward with each shot and stitch the photos together as a panorama?
Also, how should climber go about shooting the flash? She he only shoot it once each time, or should there be multiple flashes in different directions?
Any advice would be appreciated.
This is an example of the type of shot I will be going for. The pit I am photographing is about 100 feet deep and 25 feet wide.
http://images.nationalgeographic.com/wpf/media-live/photos/000/104/cache/ellisons-cave_10469_990x742.jpg