Two from today with my GX1 and Olympus 12mm f/2. I just got this lens, and mine unfortunately has a pretty severely skewed element. I've got a replacement coming Wednesday. Good news is, for these, it worked well...it's acting like a tilt shift, and the wedge of focus goes near to far from left to right (or, in the case of these, from bottom to top. So, I actually got a little deeper focus than I would have otherwise been able to do with a properly working lens. Good news is, I've found that I will really like this lens when I get a non-broken one. It's beautifully constructed, tiny, focuses quickly and is darn sharp (obviously now, not generally across the frame on mine, but I can see where it will be good).