Hi guys. I need help! I purchased a set of cheap filters, manufactured by a
company called Crystal Optics. Made in Japan. 15 year Guarantee. Well, I
need that guarantee! I unwrapped one of the filters from the sealed
plastic, and there are some smudges that I cannot clean, almost like they
are embedded in the coating. If any of you have any contact information for
this company, I would be most grateful. The box has no address or other
contact information.
Thank you,