Sunpak 58mm Circular Polarizer Glass Filter.
Light rays which are reflected by any surface become polarised and polarising filters are used to select which light rays enter your camara lens.
• They allow you to remove unwanted reflections from non-metallic surfaces such as water, glass etc.
• They also saturate colors and increase contrast.
One reason why the Sunpak 58 Circular Polarizer is popular is because of its Easy to use.