This 5.7x super telephoto zoom lens achieves a 105-600mm focal length when mounted on Sony APS-C format α DSLRs. It features image stabilization, a Super Sonic wave Motor for quick and quiet AF, 3 Focus Hold Buttons and manual focus dial. Its construction includes 18 element sin 12 groups included ED glass elements to reduce chromatic aberrations. A circular aperture provides defocused backgrounds in low light shooting.