http://forum.xitek.com/thread-1508304-1-1-1.html
(in Chinese)
Someone at the Chinese Xitek forum hinted that he had tested the beta unit of the FF and told the following:
1. The new machine is not 42MP.
2. The AF speed is very high.
3. There are many AF points than ever.
4. SR Super-resolution mode now works handheld.
5. The result of the handheld super-resolution mode is good and it works!
6. Overall better experience than the D810.