Only difference I found is that I find my B&W filters to be easier to clean than the Hoya filtersI had previously. I found the Hoyas always ended up with streaksand I found myself avoiding cleaning them.


I will leave it to the pro's to talk about any image quality differences as I used Hoya on consumer zoom (17-85) and moved to B&W when I bought primes and L zoom based on their higher recommendation so I doubt its a fair comparison