I bought a pair of FIP on eBay and they certainly look and fit like OEM lenses. But the inside of the lenses (the side you look through) is also very mirrored. I have not noticed this in any pair of other OEM lenses I have looked through. I have never owned or worn Fire before. It is mirrored enough that I can see sun reflections from the inside of my Juliet if that makes sense. Is this normal?