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Features:
- World's first 20 mm f/1.4 lens
- Advanced optical design for brilliant results
- Super Multi-Layer Coating reduces flare & ghosting
- Silent focusing with HSM (Hyper Sonic Motor) World's first Sigma have incorporated a large double aspherical lens 59 mm in diameter to create the world's first 20 mm f/1.4 lens. The bright maximum aperture allows for brilliant results in low light & better handheld photography. Advanced optical design An advanced optical design offers professional style results, reducing chromatic aberrations which is a common issue in large-aperture ultra-wide-angle lenses. Two FLD (“F” Low Dispersion) glass & five SLD (Special Low Dispersion) glass elements help minimise transverse chromatic aberration which can occur around the edge of the image. Super Multi-Layer Coating For shooting in tricky, backlit conditions this lens features a Super Multi-Layer Coating to help minimise flare & ghosting, resulting in sharp, high-contrast images. Silent focusing A HSM (Hyper Sonic Motor) ensures smooth, fast, & quiet autofocusing which is ideal when shooting video & composing photographs.