Amazon.com : JJC Professional 46mm Circular Polarizer Filter HD 18-Layer CPL Filter for Nikon Z30 Z50 Z fc with Z DX 16-50mm Lens for Panasonic G7 with Lumix 14-42mm Kit Lens &
CELLONIC® 58mm Polarising Filter Compatible for Panasonic Lumix G Vario (58mm) Super Thin Screw In Circular Linear Polariser Polarised DSLR SLR Camera Lens CPL Filter: Amazon.co.uk: Electronics & Photo