Sigma 28-70mm f/2.8 DG DN Contemporary Lens for Sony E

Key Features.

• E-Mount Lens/Full-Frame Format

• Aperture Range: f/2.8 to f/22

• Two FLD Elements, Two SLD Elements

• Three Aspherical Elements

• Super Multi-Layer & Nano Porous Coatings

• Water- and Oil-Repellent Front Coating

• Stepping Motor AF System

• Rounded 9-Blade Diaphragm

• Dust- and Splash-Proof Design