Additional information on the new AstrHori 6.5mm f/2 lens for MFT cameras can be found here (check the official website for pre-orders, AstrHori lenses are also sold at Amazon and B&H Photo):
AstrHori 6.5mm f/2 lens additional information (E/X/Z/RF/MFT)
Coming soon: new AstrHori 6.5mm f/2 fish-eye lens for MFT mount