The Kenko 37mm RealPro MC UV Filter is a dual-purpose filter designed to protect your lens whilst enhancing image quality. It blocks unwanted UV light that causes hazy and unclear photos on sunny days, whilst simultaneously serving as a permanent front-element lens protector. The filter features Kenko's professional-grade optical glass with an ultra-slim low-profile aluminium frame to avoid vignetting on wide-angle lenses. A revolutionary Anti-Stain Coating (ASC) technology causes water and moisture to bead up and slide away, keeping the filter clean with minimal maintenance, whilst the Anti-Reflection Multi Coating provides superior light transmission to prevent flare and ghosting. The knurled satin black almite frame offers excellent grip for easy attachment and removal, and the black-rimmed glass reduces internal light reflections. Every filter is supplied in a durable, reusable plastic case with UV protection to extend the life of your filter.