Zeiss Ikon Nettax uses the same body as the Super Nettel II without the
fold down bellows. A 105mm Interchangeable lens was offered in
addition to the standard 50mm lens in either f2.8 or f3.5. This version
has the rare f2.8 50mm Tessar with attached rotatable rangefinder
window. Considered a cheaper alternative to the Contax,
Unfortunately, sales were flat and after World War II the model was not
brought back. Since few were sold, they are now condsidered to be
valuable collectors items.