The HD nano Mk II coatings are among the toughest, most scratch and dirt repellent coatings offered by any manufacturer. The HD nano Mk II UV filter is a special filter with a UV blocking curve that does not affect the visible light range. In addition, this filter has an innovative active coating that protects the lens from rubbing while allowing easy cleaning of water spots and fingerprints. The HD nano Mk II glass is characterized by its quadruple thickness and chemically enhanced properties, making it a high-quality optical glass. Thanks to the nano level, the newly developed coating adheres more firmly and densely to the glass surface than ever before. As a result, particles with an extremely high density are layered on the glass surface, resulting in a particularly hard and smooth coating.