• Bright and clear view of subject Minimal glare and ghosting images, apply a full multi-coating process to all lens surfaces with a special coating designed to optimize light transmission • Sharp, high-contrast, blur-free images can be achieved with ED (Extra Low Dispersion) optical elements to effectively correct chromatic aberration • Compact and lightweight, it is easy to carry with you in a wide range of uses, from bird watching and nature observation to sporting events and concerts • Diopter adjustment mechanism for easy operation and anti-slip ring adjuster • The JIS Class 6 standard waterproof construction means you can use it safely even in bad weather