Anyone have thoughts on the newly released Sony A7RII ? I'm hearing it's internal 4K recording heats up the camera, and that it's still good in low light but not quite as good as it's predecessor, the A7R. It's a little bigger than the A7R and has a 42MP sensor. I saw one review that claimed it records 4K but in 8 bit,,,,but the Sony website says it has 14bit output! It records internal 4K to the XAVC S format, at 100mbps.... Anyway I'm just beginning the research on it now.