Yukon's NRB 30x50 is the lightweight, compact body and tripod mountable unit. It is perfect for long distance observation. Perfect for travel, the NRB boasts a magnification of 30x but retains its light weight due to an internal network of cutting-edge optics and mirror technology. Objects barely visible with the naked eye become vividly enhanced to every detail. This binocular is perfect for long distance observation, from bird watching to astronomy. The incredibly high magnification of a 30x binocular is a terrific choice for distant bird watching, astronomy, and other activities that require high-power optics.