[adoxyz]

That's only if you actually hit the record button and are actively recording to the memory card, but if you're using the DSLR as a passthrough, it works all day. I have done it w/ my Sony a6500 and it works really well.

[ericd]

I think Sonys tend to be recommended as working well as webcams, partly for this reason, not all do.

[crtasm]

I've read some cameras still have a timeout when not recording, e.g note on Canon EOS 6D here: https://www.elgato.com/en/cam-link/camera-check

[michaelt]

Can you run autofocus continuously when you're not actively recording?

[ldayley]

Sony cameras work (as mentioned below) but nearly every mirrorless or dslr I’ve used does this by default or can be set up to by switching to continuous AF modes. This is best done while connected to a power source, as the motors drain battery faster.

[ericd]

The Sony a series can, no idea about others.