Panagor PMC Auto-Macro 55mm f/2.8 (lens manufactured by Komine). My copy has fungus on the front element. I have some work to do to clean it. : r/VintageLenses
The Vivitar 35 mm f/ 1.9 (Komine) Lens. Specs. MTF Charts. User Reviews.
Simon Forster on Twitter: "Classic lenses Podcast #144: Vivitastic! A Vivitar lens special, showcasing possibly the most underrated lens brand of them all. Our favourite lenses and plenty of buying advice. #vivitar #