The Z series features the top products of the PENTAX Sport Optics range. This series consists exclusively of premium-quality roof prism binoculars that catch the eye of even the most critical observers. All binoculars in this series are manufactured in Japan. The ED series not only includes ED lenses but also features an additional dielectric coating. This enhances color brilliance and fidelity to an extraordinary level, appealing especially to the most discerning users and dedicated observers. Optimal light transmission is one of the most important aspects of a binocular's viewing quality. This is also the focus of the new technologies for the current PENTAX Sport Optics series. The full multi-coating on all lenses is considered the new standard coating. It improves light transmission and contrast while minimizing reflections and ensuring excellent color fidelity. Multi-coating on all lenses; Enhanced Light Transmission coating; Phase correction; Water-repellent coating on the outer lenses; Nitrogen filling; Continuous rubber armor for protection and secure grip.