You can immediately check out the lack of bluish noise and haze in the video, despite the mostly pitch-black subject material. Those image-stabilization skills also appear to dramatically boost the low-light photos too, even in our short testing time, although it made some shots look a little unnatural....
http://www.engadget.com/2014/03/21/sony-xperia-z2-4k/?ncid=rss_truncated
...έτοιμο και το manual στα Ελληνικά....
http://www.sonymobile.com/gr/support/phones/xperia-z2/support-documents/