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I'm not familiar with your camera, so looked up the specs for it on DPReview. Your camera is "SLR-like", but not a true SLR. Consequently, your camera has a fixed lens rather than an interchangeable one. The only way to upgrade your lens is to upgrade your camera, although the lens on your camera is pretty impressive. There aren't many SLR lenses that can compete with the 37-370mm equivalent range that your camera has and the only Canon lens with that kind of range is their 28-300mm.