Vanguard Spirit ED 8x42mm Binocular 338208 is both comfortable to use and reliably powerful, giving you the optical clarity you need for wildlife observation. These Vanguard Spirit ED binoculars have a light transmission rate of up to 90 percent, resulting in a stellar viewing experience even at sunrise or sunset, when animals are most active. You can get up close and personal to nature with these Vanguard binoculars, thanks to the Vanguard Spirit ED 8x Roof Prism Binoculars' advanced lens and prism design. Like other binoculars in the Vanguard Spirit ED line, the 8x42 model features ED glass, an extra-low dispersion glass that is improved with P2 phase coating, emerald coating, and anti-glare coating for a true-to-life image, even with 8x magnification. The binoculars utilize a BaK4 roof prism for a compact body design and excellent clarity. Vanguard has also equipped the Spirit ED with user-friendly features, including a lightweight, comfortable-to-hold body design, twist-out eyecups for long eye relief, large focus adjustment wheel and 100 percent waterproofing, so the weather will never be a factor. The Vanguard Spirit ED 8x42 BaK4 Binocular is an ideal outdoor observation tool.