I had a Voigtlander Color-Skopar 50/2.8 from the Bessamatic years ago and I always like the color rendition when using on the Sony Alpha 300.

This featured lens is a Lanthar 50/2.8 mounted on a Vito Automatic I camera body. The 3D print design has two files: a black body, and a color ring. I printed the ring in Voigtlander blue, the blue used by them back in the 1950s.

Mounted on Sony A6000.