Personally I dig this weird little fella

It’s an old Soviet 16mm film projector lens adapted to a different vintage lens’s helicoid then adapted to Micro 4/3.

It’s a 50mm f/1.2 lens and it takes some weird photos. It’s not perfect (especially if the area is well lit) but it takes some interesting photos with a little practice.

Edit: And being a lens made for 16mm film it takes pictures just like a normal micro 4/3 50mm lens would.