The smc PENTAX-DA* 50-135mm f/2.8 ED AL[IF]SDM telephoto zoom lens delivers a high level of optical quality and includes SDM technology for fast, accurate, quiet focus. Bringing together advanced optical technologies, including aspherical elements, special optical-glass elements and original lens coatings, these new interchangeable lenses are outstanding in terms of contrast, clarity and edge-to-edge sharpness.
