Lens Talk: Olympus 17mm F1.2 PRO
Shooting Video With Olympus OM-D E-M5 Mark III (Robin Wong).
Laowa 17mm f/1.8 MFT Sample Images (Photographyblog).
Choices for Building a Portable Videography Kit with New Products (Explora).
E-M5III test at Xitek.
Plenty of news on the facebook E-M1II group, Panasonic FF and the GH5 group.