Well, look like Sony have a track record of getting the job done HALF right again! The first was their stupid issue of custom white balance setting for the RX100 series for video recording, Now with the A7S, they're not providing 4K recording internal to the camera. The HDMI 4K out is only 8-bit instead of 10-bit. So if you want it for 4K recording, you will need to get the $2000 or so Atomos, and if there is housing for the Atomos....... things get super expensive quick! I think the Panasonic GH4 is more suitable for now. I hope H.265 just get utilize already so many more camera can do 4K!