A lot of Leica folks like some of Leica older lenses because of the way the render. There are a few lenses out there that because of that have gotten insanely expensive. Either way you will probably make money on any Leica lens that you buy. There is a 35 lux double aspherical that now sells usually for 15K if you can find one. They were made late 1980s and early 1990s and not many were made.
Leica made such great lenses even back in the day they are better and sharper than many of the Canon L lenses and Nikon lenses made today. The Zeiss 55 1.4 whoud really shine on your Sony or 5DIII.





