I've found Hoya filters to be high-quality and tough enough to take a smack or two, but for some reason they seem more difficult to clean than B+W. No matter how many times I go over them, my Hoya filters have this filmy smeariness (very light, but I can see it) that just won't come clean.


I've also been impressed with Calumet's house brand of filters, and the price is very good. A salesperson told me once that Calumet's filters are made by Hoya, but I haven't had the cleaning problem with them.


I should add that I haven't bought a Hoya filter in several years, and they may have changed since mine were manufactured.