The Contaflex was probably the first in a small group of 35mm SLR cameras having a leaf shutter, several further models were to follow in the Contaflex range. They were aimed at the upper end of the amateur market but were also used professionally especially for flash work as they had synchronisation at all speeds.

The stereo unit comprises two prisms positioned in front of the lens to provide the stereo separation. The lens transposes the two images, so they can be mounted directly in a slide holder or printed in an enlarger. This is different to the Contax which used a pair of primary lenses where the images have to be transposed. Zeiss provided viewers and stereo projectors, the latter using the polarising principle.

This is a Steritar A, the model B fits the later Contaflex with Tessar lens, the model D fits the Contaflex with Pantar lens, the model C fits the Contax. There is also a model B for close-up photography.