We're still getting comfortable with the A7S and Atomos Assassin combo. We shot this in 4K and are very happy with the camera/recorder interface. The battery life is a bit restrictive, but it's well worth it, for the richness in colour and the pixel count, both of which feel excessive for assembling the kit. Also, having your gear modular like this (swapping lenses, recorders and mics depending on the needs of the project) is really luxurious.
We decided to include a gallery of photos that could be loaded at full resolution to see the incredible quality of this camera in full resolution. Just click to load a version as big as your bowser.