Description
Truly wide and truly fast the Canon EF mount 20mm f/1.4 DG HSM Lens is a member of the venerable Art series of Global Vision lenses from Sigma and pairs a sophisticated optical design with a robust physical construction. Comprised of 15 elements in 11 groups the lens design includes two F Low Dispersion (FLD) elements five Special Low Dispersion (SLD) elements and two aspherical elements to significantly reduce chromatic and spherical aberrations as well as limit distortion for clean sharp and evenly illuminated imagery. A Super Multi-Layer Coating has also been applied to minimize surface reflections flare and ghosting for increased contrast and color accuracy. The wide focal length and consistent image quality make this lens especially suitable for landscape interior architectural and astrophotography applications while the fast f/1.4 maximum aperture deems it ideal for natural and low-light shooting. Complementing the optical performance is an equally adept Hyper Sonic Motor which
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