• 16 pieces in 13 groups are made with 3 FLD glass, 2 SLD glass, and 2 glass molded aspherical lenses. Reduces aberrations and provides high resolution from aperture opening. In particular, the two glass mold aspherical lenses are precision machined on the surface of the lens with nano-order to suppress the swirling ring bokeh that is prone to aspherical lenses, resulting in clear images throughout the screen • Optical design with video AF compatible and stepping motor allows for natural focus work through autofocus • The lightweight camera body with a short flange back provides a balanced and compact fit • Sony E-Mount