PolarPro's new buyback program gives you credit towards a new filter when you trade in an old one

Earlier this year, PolarPro stepped up its filter game and brought its expertise to the world of DSLR and mirrorless cameras with its QuartzLine filters. As a follow-up to its latest filter lineup, PolarPro has launched a buyback program that will let you get a certain amount of credit towards a new filter if you return an old one - even if it's not theirs. Here's how it works. For any 37mm or 46mm filter you send in, you'll be given a $20 credit towards a new PolarPro filter. For 67mm, 77mm and...