Amazon.com : B + W 52mm UV Protection Filter (010) for Camera Lens - Xtra Slim Mount (XS-PRO), MRC Nano, 16 Layers Multi-Resistant and Nano Coating, Photography Filter, 52 mm, Clear Protector :
B+W 52mm 010 1X UV Filter in extremely good condition! | eBay
Amazon.com : B + W 52mm UV Protection Filter (010) for Camera Lens - Xtra Slim Mount (XS-PRO), MRC Nano, 16 Layers Multi-Resistant and Nano Coating, Photography Filter, 52 mm, Clear Protector :