I have the Olympus 7-14mm and while it's image quality is good, it pales in comparison to Nikon's 14-28mm f/2.8 UWA zoom. Price-wise, it is not that great too as it costs as much as the Nikon 14-28mm while sporting a max aperture of only f/4 compared to Nikon's f/2.8. Then again, users of the Four Third system probably don't have much of a choice.
For those who are on the m43 system only, I would seriously recommend that you go for the Panasonic m43 7-14mm instead of the Olympus Four Third 7-14mm plus an adapter. The cost of that lens + adapter alone would allow you to buy the an additional m43 body with the m43 7-14mm lens plus a few more accesories and then some.
Anyway, here's a detailed comparison between the Olympus 7-14mm and the Panasonic 7-14mm for those who are interested:
http://www.h2hreviews.com/article/H...Vario-7-14mm-f4/Introduction-The-Matchup.html
