A few shots of some colourful garden birds in my hometown Hardwicke, Gloucester. Light conditions were bright but overcast. Sony FDR-AX53 - 4K 3840x2160@25p (100Mb/s). Was using a
SONY ECMXYST1M Stereo Mic & Fancier FT-717 tripod with fluid head.
Sony has released a firmware update which does not fix this particular issue but "◾Improves the Auto Focus (AF) performance when shooting specific scenes" http://www.sony.co.uk/support/en/content/cnt-dwnl/prd-dime/sony-fdrax53-system-software-update-ver101-win/FDR-AX53
