Instruct: Classify the given review as either positive or negative.
Query: Pain to clean, loose construction.

It looks fine and doesn't hurt image quality much but it is a pain to clean. I use a lens pen which cleans my lens and my polarizer perfectly, but this filter gets light smudge marks all over it when I try to clean it. I don't really like how the glass is fit loosely in the metal ring either, so construction does not help. I would pass.