Just got done with a day shoot with the f55. It was a music video for a well known rock band. After reviewing the footage, the global shutter is apparent. Not noticeable on slow or static shots, but very noticeable on fast moving long lens action shots or shots with a lot of fast motion within the frame. IT IS AWESOME. I've shot a lot with epic, Alexa and pretty much every camera out there except the super high end f65 for example, and it really jumped out at me. Looks so much more film-like. I never knew what I was missing. I'll be doing a full write up, but I migh have to wait until the video is released...