Sigma 20-40mm F/2.8 EX DG ASPH IF
- Mount
- PENTAX K
- Focal Length
- 20-40mm
- Max Aperture
- F/2.8
- Type
- Zoom
- Brand
- Unknown
Sigma 20-40mm zoom lens for Pentax K-mount, with a constant f/2.8 maximum aperture. Intended for general-purpose wide-to-standard use in low-to-moderate light.
Last verified: 2026-04-27