I owned the MFT 9-18mm twice and while I liked it and found it the perfect focal length, I wasn't so hot about the build quality and corners. The size was great though. I've been thinking about FT 9-18, I'm going to assume here that optically it should be a lot better since there's quite a lot more glass in it. Just curious if anyone has tried both. This will be used on an E-M1 so focus especially with an UWA should be no big deal. Here's a shot I took with the MFT version. "Every Window has a Story"