I just got my Hoya Pro CPL filter from hvstar and there appears to be a smear of some sort smack in the center of the filter - on the INSIDE of the upper (rotating) part !!!
Is there any way to clean it ? i.e. any way to take it apart to clean & put it back together ?
If not, has anybody ever returned anything to hvstar ?
I don't know if this smear has any effect on sharpness / iq, but I didn't pay to have it, and it would make re-selling this filter hard.