I was searching the web for a review of this lens to post with my ad on another forum and your thread here was picked up. This seems to be a pretty popular forum, many many people here compared to the other one I frequent.

If interested in the Mamiya M42 mount 14mm fisheye lens I am selling, I would like to point you in the direction of that thread (which currently seems to be down)...as this is my first post on these forums. The price is $350.00 plus shipping and handling from zip code 14075.