The Urth 77mm CPL Lens Filter Pro uses SCHOTT B270 optical glass and a 34-layer CoraNano Max coating to cut reflections while retaining natural colour and detail. Rotate the filter to reduce glare from water, glass, and other reflective surfaces, revealing texture hidden beneath reflections and restoring contrast in hazy scenes. Its slim aluminium frame resists warping and keeps the filter profile close to the lens.