Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great lens!

I am very happy with this lens. I other people's reviews before purchasing and I agree that when fully extended in telephoto auto focus doesn't work very well. But I can live with that. I love the versatility this lens gives me. I took it to the Getty Center and didn't have change lens all day. I was so tired of having to swith from one lense to the other and sometimes, there isn't time to do so. I love this lens and think it a great price as well.