Carl Zeiss Jena's portrait prime for Exakta — the 80mm f/2.8 Biometar with classic rendering.
The Zeiss 80mm f/2.8 Biometar for Exakta is a portrait-length prime from Carl Zeiss Jena. The Biometar designation indicates a specific optical design optimised for the 80mm focal length. At 80mm f/2.8, it provides a useful portrait perspective with moderate DOF control. CZJ's rendering character adds appeal for vintage lens enthusiasts.
Optical performance is good — the Biometar design provides pleasant rendering at portrait distances. Sharpness is good from f/2.8. Bokeh is smooth. The 80mm provides classic short telephoto compression for portraits. CZJ multi-coating on later versions improves contrast. A well-regarded vintage portrait lens.
Exakta mount. Filter thread varies. Weight varies. Build quality is solid CZJ German precision. Manual focus. The 80mm Biometar is less common than the 50mm Pancolar but well-regarded for portrait work. Adapts to mirrorless via Exakta adapters for vintage portrait photography.
Available at low prices. Check smooth focus and clean optics. A good vintage portrait lens with CZJ character. The 80mm is a useful portrait focal length. Adapts to mirrorless. The Biometar rendering is pleasant for portraits. Less common than CZJ 50mm lenses.