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Top features World's first 20 mm f1.4 lens Advanced optical design for brilliant results Super Multi Layer Coating reduces flare and 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 f1.4 lens. The bright maximum aperture allows for brilliant results in low light and 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 âFâ Low Dispersion glass and 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 and ghosting, resulting in sharp, high contrast images. Silent focusing A HSM Hyper Sonic Motor ensures smooth, fast, and quiet autofocusing which is ideal when shooting video and composing photographs.
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