Do me the original Nikon ND filter as protection for my AF-S Zoom Nikkor 24-70mm 1: 2.8G ED lens purchased. However, it crushes me clearly the focus, particularly in the wide-angle range. The difference is really striking, especially since I took a long time to get to the filter as a source of error. So I'm still on it more than screw the thing in a sandstorm, useless for really good shots!