Made of high quality BK7, UV FS or FS material lenses are offered for various applications. Wide selection of different shapes are guaranteed: conical, plano-convex, biconvex, plano-concave, biconcave, plano-convex cylindrical lenses and plano-concave cylindrical lenses. Lens kits of one inch diameter research quality lenses of all four basic shapes for optics study and research purposes are available.