I'm considering a fisheye solution. I read somewhere that this was actually a good match and comparable to the Samyang 7.5. I'm interested to see if anyone has any real world experience with this converter? Thanks!
Check out this thread for some comparisons: Rokinon 7.5mm vs. Panny 14 + VCLECF1 Fisheye converter: Micro Four Thirds Talk Forum: Digital Photography Review Edit: Sorry, I just realized it was a different adapter. It might still be helpful, though.
http://www.flickr.com/photos/an_aussie_in_guernsey/8224993196/in/photostream Here is my 14mm with fisheye conversion. There are others just check the tags.