The GSI popular line of Camera filters help you make the most of virtually every photo opportunity by improving image impact and quality. Our filters are meticulously crafted from the highest quality optical glass. Ultraviolet UV improves contrast and color saturation by reducing the effects of ultraviolet light and atmospheric dust and haze in sunny landscapes, including mountain, marine and aerial scenes. Can be used in combination with polarizer for stunning scenics, or to protect the front lens element from dirt, fingerprints, and scratches.