Product Highlights: E-Mount Lens/Full-Frame Format Aperture Range: f/1.4 to f/16 Two XA Elements, One ED Element Nano AR II and Fluorine Coatings Dual XD Linear AF Motors, Internal Focus Focus Hold Button, AF/MF Switch Physical Aperture Ring; De-Click Switch Dust and Moisture-Resistant Construction Rounded 11-Blade Diaphragm