77mm UV Filter fr Canon 70-200mm f/2.8L, 17-40mm f/4L, 100-400mm f/4.5-5.6L Lens

Thread: 77mm. 1 x Haoge 77mm Ultra Slim MC UV Filter. To prevent internal ghosting and reflections while providing over 99.8% light transmission, glass surface includes Multi-layers of anti-reflection coating.

eBay