Sony a6300 4k In: Cameras Posted March 10, 2016 1 minute ago, Andrew Reid said: AF in stills mode with Canon lenses on Metabones adapter is mindblowingly fast in good light. Can't seem to get them to track an object in video mode though. The Sony lenses track but rather unreliably in low light. So mixed bag with AF but I am loving the image so far.... seems better than expected... mainly due to NR and codec improvements? The rolling shutter is pretty severe though, like NX1. Yes, have the same problem. Ultra fast in photomode, but not working in videomode.