Hmm interesting rumours keep changing on SAR web now they claim
Source 1:
AF system is the almost the same as a7r4
The video record button is now on the top of the camera, places behind the shutter button.
4K RAW output yes, but not sure if it supports 4K 120fps RAW output. Did not try but it says it’s 16bit RAW output.
I did not have a chance to test out the RAW output because the firmware is not available, apparently Atomos is working on it to support a7sIII’s hdmi signal.
dynamic range is 15 tested by Sony, so i guess it’s ard 13-14 in real life.
Source 2:
Dials: Looking from the back panel of the camera, video dial for video mode selection left to EVF, photo dial for photo mode selection right to EVF. Exposure dial unchanged.
Screen: Touch function available when navigating the menu.
Ports: Removable port door. Two usb-c, one micro hdmi, no flash sync port.
Source 3:
Here is something unfortunate, there will be a crop on the 4K. A small one, similar to a7s2.
Also, ONLY Up to 4k60 will be 10bit 4:2:2 internal.
Source 4:
They are claiming to not have overheating issues for at least 1hr even at the highest framerate.
Source 5:
I can confirm 4k60 10 bit unlimited recording time.
I can confirm at least 180fps 1080p with full AF and sound.
Downsampled 1080p from 4K, making this the best 1080p hybrid ever made! No line skipping or pixel binning.
No internal RAW.
New codec similar to FX9.
No 6K.