Our DJI S900 is a professional series multi rotor which is usable in ‘built up’ areas. It offers 1080P RAW video for the ultimate in colour grading. With 6 rotors it offers great redundancy over a quadcopter but still manages to be compact for transport. We use only the top line of batteries, meaning better safety and better endurance for longer shots. We can use the s900 in certain areas of London with special permission rom the CAA, but time is needed to put the permissions in place.