Over the years I've either returned or sold (almost never used) every wide-angle lens I've bought. But I definitely won't. The optics are fantastic, focus is sharp, color reproduction is beautiful and 9mm is huge compared to everything else. The lens is beautifully built and looks great on my X-T2. I had no intention of taking anything other than a travel zoom with me on my upcoming trip, but I am seriously considering including this lens in my bag. I also did street photography with him, which is a lot of fun. And you don't have to worry about manual focusing. I just set it to infinity and pretty much everything is in focus.