Kai noticed that none of his Chinese E-mount lenses worked on the Sony A7V. Sony’s official response to Kai was:

We do not guarantee third party compatibility

It’s possible the A7V was running non-final firmware, or simply that the Chinese manufacturers will need to update their lens firmware for full compatibility. Many Sony users own these Chinese-branded E-mount lenses, and there’s no reason Sony wouldn’t ensure they work properly on the A7V as well.

Sony A7V preorders:
In USA at at BHphoto , Amazon , Adorama , Henrys .
In EU at Fotokoch , FotoErhardt , Calumet , Foto Köster , WexUK , Clifton , Park UK , Fnac FR .
In Australia at: Camera Pro , Sony Australia .