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Message: <blockquote data-quote="ladytonya" data-source="post: 168083" data-attributes="member: 15287"><p>I was showing a friend of mine my new camera today and she said I needed to get filters for my lenses to keep dust off of them and keep them from getting damaged. I have the 18-55mm kit lens that came with the camera plus a bundled 55-200mm lens. What exactly does a filter do? Does it just protect the lens or is there another purpose? Also, could I use the same one on both lenses? Looking on Best Buy's web site, I see so many different types of filters and brands, is there an advantage to one brand over another? Is a $10 Rocketfish filter that much worse than a $100 one? I also see UV filters, polarizers, etc. Very confusing for a newb but I was too embarrassed to ask my friend. LOL! So, what's the purpose of a filter and the difference between real cheap ones and high dollar ones? Any input would be appreciated!</p></blockquote><p></p>