B+W Pro 67mm UV C35F multi coat lens filter for Canon EF 35mm f/2 IS USM wide 894563908527 | eBay
B+W 62mm 010 UV Haze MRC F-Pro Filter at KEH Camera
This B+W UV-PRO Premium device should prevent lens fungus (Leica mount compatible) - Leica Rumors
Amazon.com : B + W 37mm UV Protection Filter (010) for Camera Lens – Standard Mount (F-PRO), MRC, 16 Layers Multi-Resistant Coating, Photography Filter, 37 mm, Clear Protector : Camera Lens Sky
This B+W UV-PRO Premium device should prevent lens fungus (Leica mount compatible) - Leica Rumors
Amazon.com : B + W 40.5mm UV Protection Filter (010) for Camera Lens - Xtra Slim Mount (XS-PRO), MRC Nano, 16 Layers Multi-Resistant and Nano Coating, Photography Filter, 40.5 mm, Clear Protector : Electronics
Amazon.com : B + W UV-Haze Protection Filter for Camera Lens – Ultra Slim Titan Mount (T-PRO), 010, HTC, 16 Layers Multi-Resistant and Nano Coating, Photography Filter, 60 mm : Electronics