The Leica 50 1.4 and the Contax 50 1.4 come off the same Zeiss assembly line. One is branded Leica with Leica mount and the other is branded Contax with the Contax mount. When I bought my Contax 50 1.4 it was $1000 less than the Leica. Save a thousand dollars and buy ANY Contax or Yashica 35mm camera and bathe in the glow of Zeiss optics.