My brother bought me a UV Filter and a Lens Protector for my Sony Cybershot DSC H20/B for Christmas. I can't seem to figure out how to get them on. I checked the Sony website, it says they're compatible. He told me the guy at the store somehow twisted the lens off, and put the filter on, and put it all back together. Now, it is entirely possible my brother wasn't paying full attention. He isn't the sharpest knife in the drawer. So, maybe they had a lens adapter on it. Does anyone have any idea?