ok experts!
what wide angle lens should I get for the hv20? is canon's the right choice? or is there a lens with better optics?

honestly... I would just like a little knowledge about my options since I am completely new to lens-buying...

optics could be important since I might want to integrate the footage with 3d special effects at some point (but that could be a pipe dream with wide angle footage)

many many thanks!
-Josh