Sigma 24mm f/1.4 DG HSM Art Lens for Sony E-Mount

E-Mount Lens/Full-Frame Format
Aperture Range: f/1.4 to f/16
FLD and Special Low Dispersion Elements
Two Aspherical Glass Elements
Super Multi-Layer Coating
Hyper Sonic AF Motor
Full-Time Manual Focus Override
Rounded 9-Blade Diaphragm
Thermally Stable Composite Material