Plano-convex cylindrical lens, plano-concave cylindrical lens, bi-convex cylindrical lens, bi-concave cylindrical lens, meniscus cylindrical lens, long cylindrical lens, special cylindrical lens etc.. Specifiction of our cylinderical lens as follow: * Material BK7 or other optical materials * Dimension Tolerance + 0.0 -- -0.1mm * Center Thickness + / -0.1mm * Focal Length Tolerance+ / -1% * Surface Quality: 20/ 10 * Surface Figure lambda/ 2 at 633nm on plano side * Clear Aperture > 90% * Chamfer 0.25mm at 45 degree typical * Coating Optional