From the ReefBum YouTube Channel:
It is easy to use a smartphone to stream live to Facebook but a DSLR will provide a much more vivid video experience. However, some solutions out there for the DSLR option require expensive hardware and software and are complicated to execute.
Well, I did a lot of research and found a low cost solution that is easy to follow in this step by step video guide.
For more information, please read this article I wrote to learn where you can find the programs and apps you will need to get this to work:
https://reefbum.com/photography-videography/how-to-use-a-dslr-for-facebook-live/