Celestron Shelf ED 8x42

ED (Extra-Low Dispersion) lenses deliver high-resolution, high-contrast images that are virtually free of optical defects such as chromatic aberration (color fringing). Flat-field technology ensures sharpness across the image, right to the edges. Fully multi-coated optics provide maximum light transmission throughout the optical path. Phase-coated and dielectric-coated BaK-4 prisms produce vivid, true-to-life colors. Eyeglass-friendly design—with generous eye relief and rugged, twist-up eyecups with multiple stops. Balanced, ergonomic industrial design. 1.5 m close focus Tripod adapter socket