Hoya Fusion One Protector 52mm

The Fusion One 52mm Protector is a completely clear filter designed as a lens protector, which has no effect on light transmission. Fusion One filters have an 18-layer Hoya SHMC multicoating with a water and stain resistant top layer. The glass is mounted in a low-profile 4mm thick aluminium frame which prevents vignetting occurring with wide-angle lenses.