K&F Concept GND8 Filter K&F CONCEPT 100 X 150mm Hard GND8 (3 Stop) ND Lens Filter, 36 Layer Coatings Hard Graduated Neutral Density Filter For Camera Lens Dslr Cameras 【Quality】 The filter material is the best optical glass from Germany, increased optical clarity and color fidelity. Urth 43mm Plus Hard Graduated ND8 Lens Filter | Wex Photo Video It contains a protective layer that makes it easy to wipe water, dust and oil out of the filter without worrying about scratching your glass. Quality] The filter material is the best optical glass from Japanese, increased optical clarity and color fidelity. * [Nano coating technology] Precision... the sea level, the skyline after sunset and sunrise or clouds and flowers on the mountain top. Graduated Neutral Density Lens Filter |K&F Concept 【Anti-reflection rate】 In industry, the same level of anti-reflection rate is only 2%.