Hello, I own an GX7 since one year, and my only one lens is the versatile Voigtlander 17.5mm. I'm looking for an ultra wide angle. I got the Olympus 12/2 before, but it was not too wide for me. I'm looking for wider. I really like prime lens and i'm not fan of zoom lens. I may considering to buy the Olympus mzd 9-18mm but it got many distorsion (like the 12/2 at wide aperture) and don't like plastic build. The kowa is the perfect lens if i don't want distorsion. The Panasonic 7-14 is nice also but filters can't be mountable Even that's possible, it's really an inconvenience for me. What do you think? Thanks for reading my topic. I would not like to talk about the future 7-14/2.8 Olympus, because i think the price will be high.