The 20x56 Monarch 5 Binocular from Nikon features a weather-sealed housing and high-transmission optics, delivering the image quality and reliability characteristic of Monarch series binoculars. This large-objective model from the Monarch 5 lineup features 56mm objectives and the same eco-friendly premium glass optics as other Monarch 5 binoculars. The lens system is made of lead and arsenic-free, extra-low dispersion (ED) glass elements, which efficiently transmit light through the optical channel and maximize image brightness.

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