Sigma 20-40mm F/2.8 EX DG ASPH IF

Specifications01

MountCANON EF

Focal length20-40mm

Max aperturef/2.8

TypeZoom

Release year2001

Weight595 g

Filter size82 mm

Min focus distance0.3 m

Max magnification0.2174

Aperture blades9

Optical elements17

Groups13

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 TypeWide-angle zoom lens

Field Notes02

Sigma 20-40mm F/2.8 EX DG ASPH IF is an EF-mount standard zoom lens with a constant f/2.8 aperture, intended for general photography where a faster aperture is useful.

AI-assisted summary — verify against linked sources

Catalog note · source: thelensdb

Sources03

thelensdb.comVisit ↗

lens-db.comVisit ↗

Other Mounts03

This lens family is also indexed in 2 other mounts.

MINOLTA/SONY AView lens

Sigma 20-40mm F/2.8 EX DG ASPH IF

20-40mmf/2.8

PENTAX KView lens

Sigma 20-40mm F/2.8 EX DG ASPH IF

20-40mmf/2.8