Designed with large objectives and a powerful magnification to make detailed observations at far distances, the Hawke Sports Optics' black 12x50 Endurance ED Binocular sports extra low-dispersion glass, phase-corrected BAK4 prisms, and anti-reflection fully multi-coated optics to improve its overall performance and enhance its low-light capabilities. The combination of magnification, optical technologies, and over-sized objectives produce bright and clear high-contrast images with accurate color rendition and virtually no fringing. Whether hunting, birding, or watching sporting events, the Endurance ED will bring your subjects and the scene up-close to provide an immersive observational experience.