Double linear autofocus motor delivers smooth, precise, and near silent focusing performance to benefit both stills and video applications.One extra-low dispersion element is featured in the optical design and helps to limit color fringing and chromatic aberrations for heightened image clarity and color accuracy.The diaphragm of the lens has nine blades and is circular – this will help explain the smooth rendering of the background – i.e., the bokeh of this lens.No need to fumble for a button on the camera body. There is a Focus Hold Button on the side of the lens – perfectly placed for your thumb if you should need to hold focus.It will work on crop-sensor cameras too of course. ![]()
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