The lens consists of ten elements in six groups, including two aspherical elements
The optimum positioning of the aspherical elements ensures flatness of the image plane for edge-to-edge sharpness
The aspherical elements are used as part of the focusing group to minimize performance fluctuations between different focal distances
X-Mount Lens/APS-C Format 35mm (35mm Equivalent) Aperture Range: f/2 to f/16 Two Aspherical Elements Super EBC Lens Coating Internal Focusing AF System Physical Aperture Ring Weather-Sealed Construction Rounded 9-Blade Diaphragm