Hoya 82mm HD Circular Polarizer Filter Antlion Audio while reducing unwanted sounds from

while reducing unwanted sounds from the back and sides

single channel

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up and away from the cords below

Hoya 82mm HD Circular Polarizer Filter Antlion Audio while reducing unwanted sounds fromLight 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. Polarizers come in two variations but have the same effect. Linear polarizers work with older camera meters; Circurlar polarizers are designed for today's newer