Very Impressive Marcel but not really sharp . Maybe because of such a long exposure will pick up ground vibration or maybe because it was stopped down too much . Something is puzzling , the EXIF reports focus distance as 2.19 Mts , yet when looking at the image, focus is sharpest way into the photo , way past the middle . 2.19 Mts would be close to your feet and the foreground should be well focused , yet it isn't. However all the images show very little distortion or light fall off , which is a first for a Sigma Wide angle lens.
