43rumors reader Jose spotted that 8mm C-mount lens with MFT adapter. Itβs the cheapest 8mm Fisheye Lens on the market. It sells for $60-$70 on [shoplink 55124 ebay]eBay (Click here)[/shoplink] and Aliexpress.
Here is a test video shot on that lens:
Shinjuku Tokyo / Cheap Wide Angle C Mount Lens γ8mm F3.8 Fisheye Lens Mil-0838γ+ Panasonic GH3