Sigma 40mm F/1.4 DG HSM | A

The Sigma 40mm F/1.4 DG HSM | A is a 40mm prime lens designed for the L-MOUNT mount and released in 2018. Manufactured by Sigma, it offers a maximum aperture of f/1.4, covering a 40mm focal range, weighs 1295, accepts 82 filters. Sigma 40mm F/1.4 DG HSM | A is one of 4 variants in its family on lens-database.com, with sibling versions across mounts including CANON EF, SIGMA SA, SONY E, making cross-mount comparison straightforward for buyers and researchers alike.

This lens record is part of the open public catalog at lens-database.com — a free, continuously updated database indexing 23,885+ photographic and cinematographic lenses with cross-referenced specifications. Data is aggregated from manufacturer datasheets and authoritative public sources, then normalized so lenses across vendors and eras can be compared on common terms. Released under CC BY 4.0, the specifications shown here may be quoted, cited, or reproduced with attribution to lens-database.com.

Last verified 2026-06-11. Source: manufacturer specifications.

What is the Sigma 40mm F/1.4 DG HSM | A?

The Sigma 40mm F/1.4 DG HSM | A is a 40mm prime lens for the L-MOUNT mount with a maximum aperture of f/1.4. Full specifications and source attribution are available at lens-database.com.

What mount does the Sigma 40mm F/1.4 DG HSM | A use?

The Sigma 40mm F/1.4 DG HSM | A uses the L-MOUNT mount. Lens-database.com indexes every lens currently catalogued for this mount at https://lens-database.com/mount/l-mount.

What is the maximum aperture of the Sigma 40mm F/1.4 DG HSM | A?

The Sigma 40mm F/1.4 DG HSM | A has a maximum aperture of f/1.4, placing it in the ultra-fast lens category. Aperture is one of the cross-referenced fields used by lens-database.com to compare equivalent optics across mounts and eras.

When was the Sigma 40mm F/1.4 DG HSM | A released?

The Sigma 40mm F/1.4 DG HSM | A was released in 2018, placing it within the 2010s generation of lens designs catalogued at lens-database.com. Year of introduction is one of the indexed fields used by lens-database.com to track design lineage and family variants.

Where can I find specifications for the Sigma 40mm F/1.4 DG HSM | A?

Full specifications, original source links, and family variants are listed at https://lens-database.com/lens/91341-sigma-40mm-f14-dg-hsm-a. Data is aggregated from manufacturer sources and updated continuously.