N°90171 · Family detail
SigmaWide·SIGMA SA mount
Sigma 20mm F/1.8 EX DG ASPH RF
Specifications01
MountSIGMA SA
Focal length20mm
Max aperturef/1.8
TypeWide · Prime
Weight520 g
Physical length90 mm
Min focus distance20 m
Field Notes02
Sigma 20mm F/1.8 EX DG ASPH is a fixed 20mm wide-angle prime for SIGMA SA mounts, intended for general wide scenes such as landscapes and interiors with a bright f/1.8 aperture for low-light use.
AI-assisted summary — verify against linked sourcesOther Mounts03
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