Sigma 135-400mm F/4.5-5.6 APO DG
- Mount
- PENTAX K
- Focal Length
- 135-400mm
- Max Aperture
- F/4.5
- Type
- Telephoto
- Brand
- Unknown
Sigma 135-400mm zoom lens for Pentax K-mount, with variable maximum aperture around f/4.5-5.6. Intended for telephoto uses such as sports, wildlife, and distant subjects.
Last verified: 2026-04-27