Not just for stills, the CamRanger is a professional solution for videographers too.
When capturing video with long lenses, you really don’t want to touch the camera, so working from the iPad in “Live View” is very helpful. In a current project, I’m capturing video on a bald eagle nest with 1000mm (500mm + 2X and Canon 5D MK III), and I monitor the camera without any vibration and know the focus is spot on. I can switch between stills and video at will, all at a safe distance from the nesting birds.
George Lepp Imaging