Quality and AffordabilityThe Aculon A211 12x50 binoculars feature 12-power multicoated lenses and 50mm objectives fabricated with Nikon's exclusive lead and arsenic free Eco-Glass. The BaK4 Porro prism systems within all Aculon A211 binoculars deliver a high quality image under a multitude of lighting conditions, making these binoculars effective from dawn till dusk. All together the Aculon A211 12x50 binoculars are a quality, cost effective choice.Aspherical Multicoated Eco-Glass LensesDelivering a bright and clear image in most lighting conditionsA triad of optical technology is integrated into the Aculon A211 binoculars. Aspherical eyepiece lenses aid in delivering a flat field of view, while lens multicoating enhances image brightness. The environmentally-friendly Nikon Eco-Glass ' lenses deliver astonishing clarity and precision in a lighter-weight, lead and arsenic-free glass composition.