Highlights:
• EF-Mount Lens/Full-Frame Format
• Aperture Range: f/1.8 to f/16
• Three FLD Elements, Four SLD Elements
• Four Aspherical Elements
• Super Multi-Layer Coating
• Hyper Sonic AF Motor, Manual Override
• Rounded 9-Blade Diaphragm
• TSC Material, Brass Bayonet Mount
• Compatible with Sigma USB Dock
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