Quoted from chuckwurt:If your computer already has capture devices in it then you’re good. You just need something that will be able to receive the hdmi signal from the camera and allow you to use it as a camera for the stream.
I don’t have pictures of the setup I posted above as my setup isn’t like that anymore. Sorry!
The relevant thing here being that the sonys don't have USB, so you need an HDMI input for them?