{"product_id":"alpen-optics-918-alpen-binoculars-monoculars-binoculars","title":"Alpen Optics Chisos 10x50 ED Waterproof Binoculars with Roof BK4 Prisms and Magnesium Housing","description":"\u003cp\u003eThe Alpen Optics Chisos 10x50 ED Binoculars combine detailed long-distance viewing with accurate color reproduction for birdwatching, hiking, and wildlife observation. Extra-low dispersion glass reduces color fringing, while the BK4 roof prism system with PXA phase coating and fully multi-coated lenses delivers bright, high-contrast images. The 10x magnification and large 50 mm objective lenses provide extended viewing reach with increased light gathering for early morning and late evening observation.\u003c\/p\u003e\n\n\u003ch3\u003eClear Detail and Natural Color\u003c\/h3\u003e\n\u003cp\u003eED glass helps reduce chromatic aberration for sharper details and more natural colors, particularly around high-contrast subjects. PXA phase-coated BK4 prisms improve image contrast, while fully multi-coated optics support efficient light transmission. Together, these optical features make it easier to identify birds, wildlife, and distant landscape details.\u003c\/p\u003e\n\n\u003ch3\u003eVersatile Viewing from Near to Far\u003c\/h3\u003e\n\u003cp\u003eWith a 294 feet field of view at 1,000 yards, the Chisos 10x50 ED provides room to scan outdoor scenes and follow moving subjects. Its 8.2 feet close focus also allows detailed observation of nearby birds, butterflies, and other small subjects. Twist-up eyecups and 18 mm eye relief support comfortable viewing with or without eyeglasses.\u003c\/p\u003e\n\n\u003ch3\u003eBuilt for Changing Outdoor Conditions\u003c\/h3\u003e\n\u003cp\u003eThe magnesium housing combines durability with a manageable 907 g weight, while the textured grip helps maintain secure handling. Waterproof construction and nitrogen purging prevent internal fogging as weather and temperatures change. The compact roof prism design makes these binoculars a practical companion for extended outdoor observation.\u003c\/p\u003e","brand":"EXPLORE SCIENTIFIC, LLC","offers":[{"title":"Default Title","offer_id":50904421990448,"sku":"918-ALPEN","price":249.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/3219\/9216\/files\/3684601.jpg?v=1793195142","url":"https:\/\/focuscamera.com\/products\/alpen-optics-918-alpen-binoculars-monoculars-binoculars","provider":"Focus Camera","version":"1.0","type":"link"}