| Description The Sigma 20mm F1.8 EX DG ASPHERICAL RF Lens is a very wide angle lens which provides perfect peripheral brightness and a very large aperture.
Specification - Sigma 20mm F1.8 EX DG ASPHERICAL RF Lens in Canon Mount
Lens Construction - 13 Elements in 11 Groups
Angle of View - 94.5 degrees
Number of Diaphragm Blades - 9 Blades
Minimum Aperture - F22
Dimensions - Diameter 88.6mm X Length 89.5mm
Weight - 520g/18.3 oz.
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