Est. 1920 · Munich and Wegscheid, Germany · 3 lenses
Enna Werk was founded in Munich in 1920 by engineer Alfred Neumann as an optical workshop producing lenses and optical components. Before selling lenses under its own name, Enna supplied optics to other brands, including Kodak and Liesegang. After wartime damage forced relocation and rebuilding, the company resumed in Munich under the Appelt family and began marketing Enna-branded lenses in 1950.
The 1950s and early 1960s were Enna's main photographic-lens period. The company built rangefinder lenses, then developed a broad SLR line from 24 mm to 600 mm with preset, click-stop, and automatic diaphragm variants for mounts such as Exakta, Edixa, Praktica/M42, and other third-party systems. Enna names included Lithagon wide-angles, Ennalyt normals and telephotos, and Tele-Ennalyt longer lenses. In 1964 the four-millionth Enna lens, a tele-zoom, was presented to the Munich Stadtmuseum.
Enna gradually shifted away from camera-lens supply as Japanese SLR systems and first-party lens lines tightened the market. The company expanded projector production, technical optics, toolmaking, and plastic injection molding, with a Wegscheid branch opening in 1968 and administration moving there in 1990. Enna sold its optical business in 1991 and continued as a manufacturing and plastics specialist, leaving the photographic legacy in its compact third-party lenses and the Ennalyt and Lithagon names.
Notable designs: Lithagon 35mm lenses, Super-Lithagon 35mm f/1.9, Ennalyt 50mm lenses, Tele-Ennalyt 400mm f/4.5, Enna 85-250mm tele-zoom