N°423164 · Family detail
SigmaZoom·CANON EF mount·2001
Sigma 20-40mm F/2.8 EX DG ASPH
Specifications01
MountCANON EF
Focal length20-40mm
Max aperturef/2.8
TypeZoom
Release year2001
Weight600 g
Filter size82 mm
Min focus distance0.3 m
Max magnification0.2174
Aperture blades9
Optical elements17
Groups13
AutofocusYes
StabilizationNo
Lens hoodBayonet-typeLH875-02 (petal-shaped)
EraDigital era
Production statusDiscontinued
Additional Info02
Lens TypeWide-angle zoom lens
Field Notes02
Sigma EX DG 20-40mm zoom lens for Canon EF mounts with a constant f/2.8 maximum aperture. Designed for general-purpose photography and low-light use across a wide-to-short-tele range.
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Other Mounts03
This lens family is also indexed in 5 other mounts.