Thank you for viewing. This is a 72mm diameter model of the Kenko Pro1D WideBand C-PL filter. I purchased it new about three years ago and have used it about once a month. While many lower-end PL filters are uncoated, this one features a digital coating to suppress surface reflection while remaining reasonably priced. When not in use, it was stored in a UV-cut case in a dark place, so I believe the deterioration of the polarizing film has been kept to a minimum. (I don't see any significant discoloration or image quality degradation.) Please also check the image of the white background in the 6th photo. Also, there are minor scratches on the filter frame (see photo 5). The glass surface is in good condition, with no scratches, wiping marks, or coating peeling. If you purchase this item together with the 82/77mm step-down ring or the 67mm step-up ring that I am also selling, I will discount the shipping cost. Please feel free to comment if you have any questions or would like additional images. #Kenko #Kenko #PL #CPL #Filter #72mm #72S #Φ72