I just got my GX7 yesterday and took it out today to play. I love the camera so far but this was a bit disappointing. This was shot with the panny 20mm v1 wide open at 200 ISO, and 1/160th of a second. I shot some other photos at much faster shutter speeds without issue. Does anyone know if this is still an issue with verison II of this lens? I love this lens, but not if its going to cause me to miss pictures... I'm not sure i like the idea of the Oly 17mm or the panny leica 25. I love the FOV of the 20. Unfortunately if this is still an issue with the second version, i think ill have to try the others. Its interesting that panasonic would release a camera that basically is not compatible with one of its lenses, especially since this lens is offered in a kit. I'm hoping since they offer version 2 in the kit, that it doesn't have this issue. Edit: I also just realized that this was shot with the electronic shutter. Not sure if that would have made the difference or not.