Polarizing filters are an essential filmmaking and photography tool for shooting in harsh light when you want to get that perfect cloud filled beach shot, mountain landscape or glassy water shot. Polarizing filters add contrast and reduce glare in your image. This gives you a deeper blue sky, removes harsh reflections in water and enables you to shoot through windows and other surfaces that are creating unwanted reflections and glare. They Manfrotto Circular Polarizing filter comes in either an 82mm (large) or 67mm (small) size. The large filter includes step-up rings for 77mm and 72mm lenses while the small filter comes with adapters for 58mm and 52mm lenses. Also included is a genuine leather case and Manfrotto Lens cloth. Made from high-quality German Schott glass with an anti-scratch layer. The construction of the filter has an aluminium frame and the glass is multi-coated with a super low reflection rate.