Hi Andy Lee, Do you know something about the "Yashica Yashinon 50mm F1.4" ? Are this lenses made in the same factory as the Zeiss Distagons? I would like to buy some Contax/Yashica lense, and this one have the mount M42 for Pentax that is very solid. Please tell me if this lense has a nice image quality like the Yashica ML.