The Sony Cyber-shot RX100 III may have photographers drooling over its fast lens and pop-up electronic viewfinder, but it gains some serious video-related updates too. It now features full sensor readout for higher image quality (as previously seen on the RX10), and also supports the XAVC S codec which allows higher bit-rates. In the latest update to our First Impressions Review, we take a detailed look at its movie mode.