As the title says, I was somewhat surprised to get such a great filter for that price. He does exactly what he is, it protects the lens of my lens. And this without compromising image quality. The filter is built rock solid, the ring is not made of cheap plastic, but from solid metal and not budge in the filter thread of my lens. By chance, I've noticed the absurd price, which is a condition of the large electric markets for this filter, and have become suspicious if I actually get the Tamron filter here. But in fact it is the one and the same product. What I also liked is that the filter is supplied in a very stable plastic box, which is a secure storage, you should remove him time allows. As for the optical quality of the filter (UV protection), I can not say anything because it's more for the analog and the digital photograph of importance. All in all a highly recommended product that is worth every penny.