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Gradual Red Colour Conversion Filter 77mm
77mm Gradual Red Colour Conversion Filter with high quality! Ultra-violet: Absorbs ultra-violet rays without increase of exposure, thereby preventing hazing and foggy effects in distant landscape. Constant use of this filter is recommended for clearer pictures as well as a lens protector.CIP polarizing: Removes or reduces reflections from non-metallic surfaces, darkens, blue sky while increasing color saturation penetrates haze. Simply rotates the filter in its mount until the optimum effect is obtained.Red-colored filter increases contrast making each color and shade striking and different perfect for the creation of more dramatic photography.The order of efficiency (moderate to striking): Yellow < Orange < Red.The finest solid optical glass, ground and polished to the most practical thinness.Heated-threated to avoid any distortion or focal shift, and each filter is subject to strict tests in order to ensure a perfect even surface which is essential to a good filter.Gradual Red Colour Conversion Filter 77mm