I just tried it as well and haven't had luck. Tried doing this:
- installing the linked 'imaging edge webcam' software.
- restarting
- hooking up my sony camera (it's compatible per the list) over usb
- opening Quicktime Player, going to "new movie recording", selecting "Sony Camera (Imaging Edge)"
- Instead see a logo for the software (instead of the camera output) but no connection. Tried futzing with opening camera in Movie mode, AUTO, with/without SD card, etc.
Dear Sony, if you're reading this please take your time and do the approach the parent commenter suggested of updating the camera firmware so it can act as a true USB webcam. I expect the experience to be more along the lines of:
- Plug in USB
- See mode selection screen on camera (you already have this).
The CoreMediaIO DAL plugin path is very fraught because of GateKeeper/SIP mechanism all trying to stop 3rd party code from being loaded into apps.
The macOS kernel does have, in theory, the possibility to create a .kext that emulates a UVC USB device, so in theory all one had to do was to write a .kext that captures the DSLR/DSLM camera in kernel land, and brings up a virtual USB device that is then recognized by the standard UVC driver (eg. same as any other webcam).
Of course, that doesn't provide any camera settings controls, and the practical side of it is quite complicated, with sparse documentation and difficult development processes, it being a kext. Hence, nobody's done it, yet.
