Optimised for speed this lens maintains a fast and constant 2.8 aperture through the zoom range for easy use in low-light conditions, as well as for greater control over shallow depth of field. Smooth bookeh is achieved by the eleven-blade circular diaphragm for smooth out-of-focus areas. The newly developed aperture drive unit provides fast yet quiet operation.
This new version of Sony’s popular 70-200mm lens delivers increased sharpness with a minimum of aberrations by an optical design that includes an XA element, an aspherical element, two extra-low dispersion aspherical elements, two extra-low dispersion elements, and two super ED elements.
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