A Dp friend of mine, Graham Robbins, designed a panoramic rig for the company Inreal that will mount 4 Red Epics on one tripod. The images stitch together to make one panoramic image that is approximately 20k pixels wide.
He passed a couple of shoot days to me when he was booked up on another gig and I got to shoot with this beast. It weighs about 70 pounds so it is definitely something where you need to plan out where you are shooting and only expect to get 2-3 shots in a couple of hours. It was a great experience and taught me a lot about panoramic shooting.
Camera: Red Epic x4
Lenses: Rokinon 24mm, 85mm