Sometimes, my pictures look like I'm in the middle of a fog. The colors look washed out, I can barely see myself in them, like if I was a ghost. When this happens, I have to wait like 15 minutes until my lens get back to normal. Did you ever have this problem? I have two lenses and they both do that from time to time.
Read more:
Why do my Nikon lenses do that? Read description?