Sigma Mirror 400mm F/5.6
- Mount
- PENTAX K
- Focal Length
- 400mm
- Max Aperture
- F/5.6
- Type
- Mirror
- Brand
- Unknown
Sigma Mirror 400mm f/5.6 fixed-focal lens for the Pentax K mount. Mirror (catadioptric) telephoto design intended for long-distance subjects; aperture is f/5.6.
Last verified: 2026-04-27