n the Z series you will find the top products of the PENTAX Sport Optics range. This series consists exclusively of roof prisms in premium quality, which catch the eye of the most critical observers. All binoculars of this series are made in Japan. The ED series has an additional dielectric coating in addition to ED lenses. This raises the color brilliance and color fidelity to an extraordinary level and inspires especially the most demanding users as well as the most dedicated observers. The optimal transmission of light is one of the most important aspects of the quality of vision of binoculars. This is also the focus of the new technologies for the current PENTAX Sport Optics series. So is the? Full Multi-Coating? all lenses as new standard coating. It improves light transmission and contrast while minimizing reflections and color fidelity. Multiple compensation on all lenses; Enhanced Light Transmission Compensation; Phase correction; Water-repellent coating of the outer lenses; Nitrogen filling; Continuous rubber reinforcement for protection and secure hold;