Admiral G.M.C. Automatik-Weitwinkel 21mm F/4
- Mount
- M42
- Focal Length
- 21mm
- Max Aperture
- F/4
- Type
- Wide
- Brand
- Unknown
21mm f/4 fixed prime wide-angle lens for M42 screw-mount cameras, intended for landscape, architecture, and general wide views. Aperture is f/4.
Last verified: 2026-04-27