N°90167 · Family detail
SigmaWide·CANON EF mount·2000
Sigma 20mm F/1.8 EX DG ASPH RF
Specifications01
MountCANON EF
Focal length20mm
Max aperturef/1.8
TypeWide · Prime
Release year2000
Weight500 g
Filter size82 mm
Physical length90 mm
Min focus distance0.2 m
Max magnification0.25
Aperture blades9
Optical elements13
Groups11
AutofocusYes
StabilizationNo
Aperture controlNone
The aperture is controlled from the camera(Canon EF, Minolta/Sony A, Sigma SA)
Aperture ring (Manual settings + Auto Exposure setting)(Nikon F, Pentax K)
Lens hoodLH875-02 - Bayonet-type petal-shaped
TeleconvertersNot compatible
EraDigital era
Production statusDiscontinued
Additional Info02
Lens TypeUltra-wide angle prime lens
Field Notes02
Sigma 20mm f/1.8 wide-angle prime for Canon EF DSLRs, designed for low-light and general wide views with a fast maximum aperture. It uses a focal length of 20mm and mounts via Canon EF.
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Other Mounts03
This lens family is also indexed in 3 other mounts.