I don't think so Bruce, I'm aware that with the exception of the 50mm f1 Noctilux, Leica doesn't make it's own glass, directly from sand. But except for a couple of weird exceptions such as the 24 f2.8 R and a mid range zoom, both made by Minolta, I do believe than Leica makes its own lenses. I think the latest incarnations of the Leica 50 f1.4 R and the Contax 50 f1.4 are different designs, with the Contax generally considered to be better.