I am interested in selling an 80-200 AF NON-D. The outside is clean, looks slighly used. The glass is clean, free of any kind of scratches, however, there is a *little* dust inside the lens. What is a reasonable price? I went to a large, local, reputatble shop in Chicago an they were offering a trade-in price that I felt was low. Any suggestions? Thanks in advance for your advice.
