Achromatic lenses are lenses consisting of two or more elements, which are usually made of crown and flint glass with differing indices of refraction. Achromatic lenses are nearly free from aspherical aberration and coma. Achromatic lenses have far superior optical performance than singlets. With ten years of manufacturing experience of spherical lenses, CeNing can manufacture all of kinds of achromatic lenses according to customers design. please visit our website for more details.