Further test in 4K recorded in and around Sydney Central Business District. Used the crop setting, cinema picture setting 1 and auto focus. You can see the moire still in some of the buildings, and also the focus “searching” especially in lower light areas. Manual focus fixes the focus searching, but not the moire. It is a function of the sensor, not the codec, because the same artefacts also show on the Shogun. I conclude that the A7SII is a better bet for 4K Video.