The Nikon ED50 13-40X Eyepiece 7467 is a versatile zoom eyepiece designed for Nikon Fieldscopes. Featuring fully multicoated lenses, this eyepiece ensures maximum light transmission and true color rendition, providing clear and distortion-free viewing. The zoom range of 13-40x allows for detailed observation of distant subjects, making it ideal for birdwatching, wildlife observation, and other outdoor activities. The sliding eyepiece accommodates eyeglass wearers, ensuring comfortable use for extended periods. Durable and reliable, the Nikon ED50 13-40X Eyepiece is a valuable addition to any Fieldscope setup. Nikon ED50 13-40X Eyepiece 7467