i used to have a Sigma 17-70mm lens that took a 72mm filter. I don't really know why I bought this, because I don't think I ever used it. it's this one: http://www.bhphotovideo.com/c/product/22707-REG/Hoya_012135_72mm_Circular_Polarizer_Glass.html it's as close to "brand new" as it gets. no scratches, no nothing. B&H has it for $65 + Shipping ... i'd sell it to you for $60. No shipping. I'm going to be out of town until Friday, and can send it after that. please don't PM me ... just post in here if you want it.