CELLONIC® 49mm Polarising Filter Compatible for Canon EF (Ø 49mm) Super Thin Screw In Circular Linear Polariser Polarised DSLR SLR Camera Lens CPL Filter: Amazon.co.uk: Electronics & Photo
Dorr DHG Circular Polarizing Filters | Multiple Sizes Available
95mm Circular Polariser II – Grays of Westminster Online Shop
Kood High Quality Japanese Glass Circular Polarising Filter 35 5mm