1938 Carl Zeiss Jena 5cm F1.5 Sonnar "T", converted to Leica Mount, wide-open on the M9. ISO 2500 setting.
I'm a Sonnar fanatic. I have a coated Sonnar 5cm F1.5 that is even older than this one: 75 years old, and looks like it is from the test batch of coated lenses. Just picked up a Jupiter-3 focus mount to do the conversion to Leica mount. It will be a "convertible lens", move between original Contax RF and Leica mounts.
I'm a Sonnar fanatic. I have a coated Sonnar 5cm F1.5 that is even older than this one: 75 years old, and looks like it is from the test batch of coated lenses. Just picked up a Jupiter-3 focus mount to do the conversion to Leica mount. It will be a "convertible lens", move between original Contax RF and Leica mounts.