Bo0mer

Soligar fish-eye lens converter. This is a cheap way to play with fish-eye effects, it screws into the filter ring of a normal lens (the picture attached was taken with a 50mm Nikkor on a Sony Nex 6 camera). It comes with a 52mm adapter, you will have to use step up or step down rings for other size lenses. It's a weird arrangement, I've included a picture of it mounted on my Olympus 12-40mm for clarification. Please PM me if interested.
I'm trying to clear out some stuff I haven't used in awhile, so $20 or best offer + shipping.
Thanks for looking!