Hello, all. I am looking to do some lens upgrading for my D7000 and would like some recommendations. I have no immediate plans of upgrading my camera to FX. I currently have the following Nikon lenses: 18-105, 35/1.8G, and 50/1.8G. I have grandchildren who are involved in indoors and outdoors sports; I like to take portraits, and love to take landscapes. I am looking to abandon the 18-105 kit lens. Thanks for sharing your experiences.