The Diamondback HD smashes the scale of price vs performance, delivering a rock-solid optic that optically punches high above its class.Specifications and Features: 10x magnification & 42mm objective lenses, these diamondback HD bingos are optimized with Select glass elements to deliver exceptional resolution, cut chromatic aberration and provide outstanding color fidelity, sharpness and light transmission. Fully multi-coated lenses increase light transmission with anti-reflective coatings on all air-to-glass surfaces. Dielectric coating provides bright, clear, color-accurate images. Armorer coating protects exterior lenses from scratches, oil and dirt.