I have for sale this lens. There are minor cosmetic marks but the glass is perfect. Sorry for the cell phone picture.
The thread size is 46 mm but it can easily be used with many cameras using a step up ring. It is .2x magnification with a maximum of 183 degree viewing angle. When its is zoomed all the way out it almost makes a full circle on the screen. The sample video below is at zoom 40 with a panasonic dvc-30
I am asking $350 + shipping or you can just pick it up in salt lake city. Has front and back lens cap.
The only other one I found for sale is here at $799-