Canon released a FREE software that will let you use select Canon cameras as a dedicated webcam without the use of any third-party software or a capture card.
EOS Webcam Utility Beta is an easy-to-use plug-and-play option for users who don’t have access to a Canon camera with clean HDMI out, or for those who simply don’t need any of the other benefits that capture cards or streaming software offer.
The tool works over a USB Connection, and is compatible with the following models:
- EOS-1 D X Mark III
- EOS-1 D X Mark II
- EOS 5DS R
- EOS 5DS
- EOS 5D Mark IV
- EOS R
- EOS 6D Mark II
- EOS RP
- EOS 7D Mark II
- EOS 90D
- EOS 80D
- EOS 77D
- EOS Rebel T7i
- EOS Rebel T6i
- EOS Rebel T7
- EOS Rebel T7
- EOS Rebel SL3
- EOS Rebel SL2
- EOS Rebel T100
- EOS M6 Mark II
- EOS M50
- EOS M200
- PowerShot G5X Mark II
- PowerShot G7X Mark III
- PowerShot SX70 HS
You may download the tool here.