The Alpen Wings 10x42ED Binoculars deliver a user friendly ergonomic approach to optics viewing. ED optics is achieved through the use of fluorite glass which provides the very best in color fidelity and contrast in all light conditions. This binocular is designed to be lightweight and durable while maintaining optical performance. Alpen's flexible open hinge design provides for user friendly handling. It is completely multi-coated and has PXA phase correction coating.