Originally posted by Lokusart I didn't believe how difficult Hoya filters are to clean before trying, I though about ditching it and buying a new one LOL. I had best results with a hama cleaning liquid and following their instructions
HOYA | The Difference is Clear
I'm not 100% satisfied with the results, but I'm a bit perfectionist
I have trouble cleaning every lens and filter I have. I can get them basically clean, but then I take them out in the bright sun and hold them so they reflect the sun and there's still some haze on all or part of the filter.
My only complaint about hoya specifically is that I have a hoya mc filter labeled as such that doesn't actually appear to be mc. I have three of the same exact model in different sizes and two are obviously mc and the other one not. The point is that within each brand, there are a variety of filter models - maybe even more than labels suggest. So it's probably not accurate to make blanket statements like "hoya filters are difficult to clean."