Full-Frame | f/1.4 to f/16 | Fast Portrait-Length Prime | 20% Lighter, 13% Smaller than Previous | XD Linear Motor Autofocus | Aperture De-Click and Lock Switches | Iris Lock Switch
RF-Mount Lens/APS-C Format | 29-80mm (35mm Equivalent) | Aperture Range: f/2.8 to f/22 | Minimum Focusing Distance: 4.8" | Three Aspherical Elements | Special Low Dispersion Element