Zeiss-Opton / Carl Zeiss Contax Biogon 21mm F/4.5
- Mount
- CONTAX
- Focal Length
- 21mm
- Max Aperture
- F/4.5
- Type
- Wide
- Brand
- Carl Zeiss
Zeiss Contax Biogon 21mm f/4.5 is a fixed wide-angle prime lens for the Contax mount, used for landscape, architecture, and general wide-field photography. It has a maximum aperture of f/4.5.
Last verified: 2026-04-27