Hi. I just bought Nikon 55mm f/2.8 AF MICRO-NIKKOR. Ken Rockwell says its probably Nikon's sharpest lens ( and the sample images I saw on the internet are extremely sharp. However, the lens I bought is extremely soft. Its actually the less sharpest lens I had (even my cheap kit lens is much sharper). I have Nikon D3300. Where could be the problem? Do you think there is something wrong about this lens or am I doing something wrong? (Of course, I am focusing manually) I try to upload some images tommorrow.