Hello!! I dropped my camera about 2 feet from the floor onto hardwood flooring. It worked fine for the rest of the time, but today I tried to use it and the lens is broken. I can see what's broken but I'm not sure how to word it, or if it's the right name. The pieces that make up the aperture hole are broken. The are loose in the lens. Can that part be fixed? As long as they don't get in the way of focusing it works...except it won't zoom in. I am prepared to get a new lens, but if it can be fixed I would rather do that. It's a Nikkor lens 18-135 mm. It's the one that came in the kit. Thanks!