The Cam Link 4K is recognised by your computer as a USB webcam, so you can simply switch to it within your software and get it to work (more on that in a bit). There are a few other things to think about, like how you're going to mount your camera or what tripod to use but otherwise, it works perfectly. You can check whether it's compatible here, but what we've found is it works with more cameras than the official manufacturer software. The Cam Link 4K works with not only DSLR cameras but all manner of other cameras including camcorders and action cameras too. That, in turn, plugs into a USB port on your PC or Mac and then you can use the camera in place of a webcam. Quite simply, you plug an HDMI cable into your camera, then the other end of that into the Cam Link 4K capture card. Devices like Elgato's Cam Link 4K allow you to make use of your camera's HDMI output to convert that view into something your PC can use. If you don't have the right software, the other option comes in the form of HDMI capture cards.