[1 of 1 customers found this review helpful]
I've invested in my lenses and not only do I want to protect them I wanted to make sure what I put in front of that Canon L glass lens wasn't going to undermine that investment. I've replaced all my UV filters with B&W filters -- multi-coated -- along with their Circular Polarizers. B&W filters offer top notch optics, construction and performance. A winning combination in my book.