It looked like 2021 was going to be somewhat of a dry year for virtual reality content creators, and then out of nowhere, Canon drops the RF 5.2mm f/2.8 L Dual Fisheye lens aimed squarely at creators of 180 VR content. It's now possible to more easily shoot this kind of content in 8K, but beyond that, what other new features does it bring to the table? Expert VR content creator Hugh Hou explains.