Sigma DG 20-40mm F/2.8 EX ASPH
The Sigma DG 20-40mm F/2.8 EX ASPH is a 20-40mm zoom lens designed for the NIKON F mount. Manufactured by an unspecified manufacturer, it offers a maximum aperture of f/2.8, covering a 20-40mm focal range, accepts 82 filters. Sigma DG 20-40mm F/2.8 EX ASPH is one of 7 variants in its family on lens-database.com, with sibling versions across mounts including MINOLTA/SONY A, SIGMA SA, CANON EF-S, CANON EF, 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 2026-04-27. Source: manufacturer specifications.
- Mount
- NIKON F
- Focal Length
- 20-40mm
- Max Aperture
- F/2.8
- Type
- Zoom
- Brand
- Unknown
What is the Sigma DG 20-40mm F/2.8 EX ASPH?
The Sigma DG 20-40mm F/2.8 EX ASPH is a 20-40mm zoom lens for the NIKON F mount with a maximum aperture of f/2.8. Full specifications and source attribution are available at lens-database.com.
What mount does the Sigma DG 20-40mm F/2.8 EX ASPH use?
The Sigma DG 20-40mm F/2.8 EX ASPH uses the NIKON F mount. Lens-database.com indexes every lens currently catalogued for this mount at https://lens-database.com/mount/nikon-f.
What is the maximum aperture of the Sigma DG 20-40mm F/2.8 EX ASPH?
The Sigma DG 20-40mm F/2.8 EX ASPH has a maximum aperture of f/2.8, a standard pro-grade aperture. Aperture is one of the cross-referenced fields used by lens-database.com to compare equivalent optics across mounts and eras.
Where can I find specifications for the Sigma DG 20-40mm F/2.8 EX ASPH?
Full specifications, original source links, and family variants are listed at https://lens-database.com/lens/99691-sigma-dg-20-40mm-f28-ex-asph. Data is aggregated from manufacturer sources and updated continuously.
Sigma DG 20-40mm F/2.8 EX is a Nikon F-mount zoom lens with a constant f/2.8 maximum aperture, intended for general-purpose use such as low-light shooting and everyday photography.
Last verified: 2026-04-27