I have noticed a rather curious thing in one of my photographs taken with the E-M1 and the Four Thirds 9-18mm f/4.0-5.6: Hills and stream by James Petts, on Flickr The rocks in the foreground and the valley/trees in the background seem to be more in focus than the rocky outcrop/hilltop to the centre left. I am not quite sure how this can be: the focus, I think, was on the rocks, but this was taken at 9mm and f/5.6, so there should be a reasonably decent depth of field. Camera shake seems to me extraordinarily unlikely at 1/125 at 9mm with 5-axis stabilisation. Could this be a sign of a faulty lens? I bought it secondhand some years ago when I first got the E-M1. It has never been as good as some of the higher end lenses (I have to add quite a lot of sharpening in post usually), but it can give decent results sometimes.