Light rays reflected off surfaces become polarized, and polarizing filters, like Hoya Polarizing Filters, are used to control which light rays enter your camera lens. These filters help eliminate unwanted reflections from non-metallic surfaces such as water and glass while enhancing colour saturation, clarity, and contrast. They are particularly effective for deepening the contrast between blue skies and white clouds. Importantly, HOYA's polarizing filters maintain the overall colour balance of your shots.