The Tiffen 4 x 5.65" Clear Uncoated Water White Glass Filter is a simple, clear filter designed for general protection for your lens. This optically clear filter does not affect the overall image quality while helping reduce dust, scratches, moisture, and other elements from damaging your lens. This filter is uncoated for greater durability when compared to multicoated filters. Its Water White glass construction is optically pure and maintains consistent light transmission and clarity.