Full-Frame | f/1.8 to f/22 | Fast Portrait-Length Lens | Linear Stepping Motor Autofocus System | 1 HR, 1 ED & 3 ASPH. Elements | 9 Elements in 8 Groups | 9-Bladed Diaphragm
Full-Frame | f/2.8 to f/22 | Ultrawide Prime Lens | Linear Stepping Motor Autofocus System | 1 HR, 3 ED & 1 ASPH. Elements | 8 Elements in 7 Groups | 7-Bladed Diaphragm