Because everyone tries to switch to video conferencing at the same time, there is a shortage of webcams. So why not use a camera you already have lying around? Following in Wyze's footsteps, Canon released beta software to turn your DSLR, mirrorless or PowerShot camera into a webcam for Windows.
Sorry folks, this is only a PC solution for now. If you're using a Mac or your fancy camera isn't Canon, you should rely on an HDMI recording card instead. But for Canon and Windows users, the new software is a great option for your webcam needs.
Instead of relying on an HDMI card and clean HDMI video output settings, connect your camera to your PC with a USB cable. Download the software and install it, then configure your camera with your video conference service (Zoom, Google Hangouts, etc.) and you are good to go.
The camera company notes that there are cases where an HDMI capture card might be the better choice, for example when you want a higher resolution video, or if you plan to integrate with third party software, such as Open Broadcaster Software (often used for game streaming).
Canon's site has a complete list of supported cameras, along with links to the EOS Webcam Utility Beta software. You will not find a single download location for the beta. Instead, choose your camera, navigate to drivers and download the software there.
Source: Canon via DPReview