I started to use my Canon EOS 80D DSLR as a webcam. Canon finally release drivers in November. The image quality amazing. It's also a bit overkill though to use a (back then) 1400€ camera to act as a webcam (also hard to compare with default webcams at that price point), but as long as I'm not using it otherwise, I think it's ok :)
Agreed! DSLRs are great for this kind of stuff. I posted two links to guides on how to do this for Mac and Linux here: https://news.ycombinator.com/item?id=25870161, if someone has a guide for Windows I'd love to see it.