Unsurpassed clear vision is offered by the proven STEINER Nano-Protection®. It provides the lenses with a dirt and water resistant surface, protecting them against aggressive environmental effects. Rain, salt-water, snow and moisture are eliminated from your view by this repelling layer. Cleaning is considerably simplified and hard-to-remove dirt becomes a thing of the past. The ultra-thin hydrophobic surface treatment on the objective and ocular lenses is extremely robust and ensures that your binoculars will deliver high-contrast brilliant images across the decades.