I just picked up this Summarit 50/1.5 the other day, which is in pretty bad shape (it was cheap.) As you can see from the photos, it's very foggy and there are some scratches on it. The shop told me that it cannot be cleaned, but I'd like a second opinion from the people here. I know scratches can't be fixed, but what about the fogging? The last picture is a sample photo from it.