This is a minimalist solution to make panorama and VR picture, you just need one GoPro or Xiaoyi action camera to make a perfect panorama spherical picture. The GoPro version are finished but I haven't tested it yet, I will publish it after test. Check out my Instructable i'll show you exactly how I did it. http://www.instructables.com/id/A-Minimalist-Solution-to-Make-Panorama/