Sigma 17-40mm F/1.8 DC | A

Specifications01

MountCANON RF

Focal length17-40mm

Max aperturef/1.8

TypeZoom

Release year2025

Weight560 g

Min focus distance0.28 m

Max magnification0.2083

Aperture blades11

Optical elements17

Groups11

AutofocusNo

StabilizationNo

Aperture controlAperture ring (Manual settings + Auto Exposure setting)

Lens hoodLH728-02 - Bayonet-type petal-shaped

TeleconvertersNot compatible

Production statusIn production

Field Notes02

Sigma 17-40mm F/1.8 DC is a wide-to-ultrawide zoom for APS-C cameras, offering a constant f/1.8 aperture for low-light and general-purpose shooting. Intended for landscape, street, and indoor use.

AI-assisted summary — verify against linked sources

Catalog note · source: thelensdb

Sources03

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Other Mounts03

No alternate mounts are indexed for this family yet.