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
Vivitar 28mm Komine Close Focus Lens - Camera Lenses - BMI Surplus
Stephen Daugherty Photography - Vivitar (Komine) 24mm f/2 MC
Vivitar (Komine) 55mm f2.8 on X-T2 | FujiX-Forum
Vivitar (Komine) SMS MC Close Focus Wide Angle 28mm f2.8 /… | Flickr