Zeiss Sonnar 50mm f/1.5 (1939) — The Lens That Drew Light Before Colour

The 50mm f/1.5 Zeiss Sonnar from 1939 is one of the great optical designs of the last century. It belongs to an age before coating, before marketing language replaced observation. It was built to interpret light, not to control it. Mine is one of the last pre-war uncoated examples, mounted on a Contax IIa body from the early 1950s — the bridge between the pre-war world and the modern one.