Kenko Action Circular Polarizer
The Kenko Action Circular polarizing filters gives scenic photography more punch by darkening blue skies so that white clouds and foliage stand out. Light rays become polarized when traveling through moisture and pollution in the atmosphere as well as when it reflects off non-metallic surfaces. A polarizing filter absorbs polarized light and helps remove unwanted reflections from non-metallic surfaces such as glass or water. The filter has a precision milled aluminum frame, and uses non-coated filter glass.