Carl Zeiss Jena 50mm f1.4 Biotar
The Biotar 50mm f/1.4 is a classic standard lens derived from the renowned double-Gauss optical formula, a design that has influenced generations of high-performance normal lenses. Its optical construction consists of six elements arranged in four groups, following a nearly symmetrical double-Gauss configuration that provides … Continue readingCarl Zeiss Jena 50mm f1.4 Biotar