The objective Aus Jena is the same model as the Carl Zeiss Jena its construction is the same but for reasons of commercialization in the US its name was changed from Carl Zeiss to Aus so this model would be the Carl Zeiss Jena DDR.
It is a very light and compact lens with a very simple construction, it has a minimum focusing distance of only 35 cm, that allows it to be a good lens to use in macro images.
When there is little lighting there are problems to take pictures in maximum aperture f / 2.8
The Zeiss Jena lenses were made in four basic finishes:
|Image Format||Full-frame / 35mm|