Premium G Lens optical design Telephoto zoom with outstanding corner-to-corner G Lens resolution Lightweight (22oz.) remarkably easy to handle 5x super-telephoto zoom 70-350mm (105-525mm full-frame equivalent) super-telephoto zoom Aspherical element controls spherical aberration Three extra-low dispersion glass reduces flare and ghosting XD Linear Motor provides fast, precise, quiet AF and tracking Programmable focus hold button for multiple functions Linear Response MF for precise manual focus control Instant auto/manual focus selection via a AM/MF switch Optical SteadyShot image stabilization 7-blade circular aperture contributes to gorgeous bokeh Dust and moisture resistant for robust durability reliability Compatible with a wide range of Sony cameras; see specifications for details