I tried to use both 5D and RX100. It's a hard choice because there is a big difference between a One inch sensor with a unique lens and a Full Frame with multiple solutions. But it makes the job pretty well. For some shots it's pretty amazing. I call it the "no stress" camera. Point and shoot. That's it. RX100 slow-motion (yes, it does 250fps in 1080p) and 5d pictures soon ;-)