The occasional similarity of appearance, of design, and the interchange ability of Zeiss Jena and Oberkochen components such as components for microscopes, and cameras was more than by accident.

• 东西德两家蔡司公司的显微镜产品，在外观、设计和零件互换性上出现了雷同，而相机方面的相似则纯属偶然。