I have a 18-200mm VRII lens with 1UV filter and 1PL filter on . I noticed some fingerprints on it so i tried to blow(i know it sounds stupid) . Then i used a brush but it wouldnt go off . So i used a microfiber cloth to wipe it off , and i succeeded .
However , dust appeared right after wiping the print off . So i used the blower together with the brush and made the lens crystal clear . Now that , i noticed 20+ short scratches all over the PL filter .
Now the question , how to get rid the scratches ? And will the scratches on the filter cause an effect ?