Interesting interview by Rob Galbraith of Nikon D4’s engineer Toshiaki Akagi.
The gist of the interview: D4 has much faster focus acquisition (“first frame” of a burst); sharper, more fine detail and reduced color noise at high ISOs; only Sony to make XQD cards; no comment of a mirrorless F-mount DSLR.
Read the interview at: Rob Galbraith.