Carl Zeiss / Zeiss-Opton Biogon 21mm F/4.5
- Mount
- CONTAX
- Focal Length
- 21mm
- Max Aperture
- F/4.5
- Type
- Wide
- Brand
- Unknown
Zeiss Opton Biogon 21mm f/4.5 is a fixed 21mm prime ultra-wide lens for the Contax mount, designed for landscape and architectural use. It has a fixed aperture f/4.5.
Last verified: 2026-04-27