Since getting the Panasonic 20mm and giving it a fair shake, I've noticed several photos which were completely out of focus. I mean not even close, where it's obvious the camera (or the lens) totally misjudged the focus. I'm away from home right now so I may not be able to pull up examples, but I'm wondering why the camera went ahead and took the photo. Release Priority is definitely still set to focus, like it is by default. Has anyone else noticed this, and is it a fault of the camera or the lens?