I tried everything I know. I was shooting last week in bright sun light. It was ultra hot. The glue from my circular polarizer spilled all over the filter. not the quality I was expecting from a $200 B&W filter. When I saw it first I thought it was just my finger oil. so I did teh usual. breath + lens tissue. that didn't help, so I did my tiffen lens cleaner + breath + lens tissue. Still nada. So I bought LEE filter cleaner and still nothing. Everything I do, leaves smudges on the filter. How do I clean this stuff off!?
thx in advance,
Marek
EDIT:
its the glue that holds together the two parts of the filter. the twisty one and the rest.



