Key Features E-Mount Lens/Full-Frame Format Aperture Range: f/2.8 to f/22 One XLD Element, One LD Element Three Aspherical Elements BBAR and Fluorine Coatings RXD Stepping AF Motor Moisture-Resistant Construction Rounded 9-Blade Diaphragm RFS: Switch to GM lens Available for trade to Sony 35mm or 50mm GM lens I will add cash