[exodust]

The difference is the DSLR isn't designed to function like a webcam - always plugged in ready to go. "Set and forget" doesn't apply as reliably.

For personal use it's fine. But for work meetings where someone calls you unexpectedly is where things can go wrong if you have unconventional equipment dependencies.

The author recommends an "old DSLR". But you will need utility software running, it's not just a simple driver. Manufacturers make and update these utilities at their discretion. It's a gamble whether it all runs smoothly.

The DSLR needs to be in a special mode, and won't wake up in that mode automatically for incoming calls if powered down, etc.

[almog]

One hackish idea that I had for quick deployment of my mirrorless as webcam, but that I never implemented was to use a dummy battery ⃰ and have a micro controller act as the dummy battery switch. The switch is then controlled by a process that monitors whether the UVC device that's associated with the mirrorless camera is currently being used.

[*] A power adapter that feeds into a battery shaped terminals, thus allowing an "infinite" battery which. It could be better than USB charging while using the battery because USB charging might not keep up with the battery drain. The downside of course might be malfunctioning dummy battery causing your camera to fry.