Wide-Angle Brilliance: A 20mm focal length with a fast f/1.4 aperture for exceptional wide-angle shots, especially in low light.
Superb Optical Quality: Two FLD, five SLD, and two aspherical elements reduce aberrations and ensure high image sharpness and clarity.
Anti-Reflective Coating: Super Multi-Layer Coating minimizes flare and ghosting, enhancing contrast and color accuracy.
Swift Autofocus: Hyper Sonic Motor (HSM) delivers quick and quiet autofocus with manual focus override.
Robust Build: Thermally Stable Composite material for durability, brass bayonet mount for precision, and compatibility with Sigma's USB Dock for customization and updates.
