Hoya NXT Circular Polarizer Filter (58mm) Polarizing filter for compatible cameras at Crutchfield
Hoya 58mm NXT Plus Circular Polarizer Filter
Hoya HD3 58mm Circular Polarizer Filter — Glazer's Camera Inc
Hoya Pro1 Digital Cpl 37-77mm Circular Polarizing Polarizer Filter Pro 1 Dmc Cir-pl Multicoat For Camera Lens Mini Itx Case - Sports & Action Video Cameras Accessories - AliExpress