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I have a Canon Rebel T3i. It came with an EF 75-300 and EF-S 18-55. I like to take pictures of wilderness, especially at a distance, and some photos at night of stars and building clouds. What lens would complement those that I already have? I received a 10-18mm f/4.5-5.6 IS STM for Christmas. I'm trying to decide whether to keep that. What would it be best to use for? Or should I return it for something totally different?