thompsonks
Well-known
After looking at your images, I'm pretty sure your best choice would be a 40mm Summicron C, modified to bring up the 35mm framelines. The images don't make a case for either 35 or 50, and the 40 is a fine and relatively inexpensive lens. Takes a bit of looking. It's not hyper-contrasty like new lenses but is sharp wide open. Second best for you would be 35mm Summicron pre-aspherical, v2-v4.
PS, I can't agree with the Zeiss recommendation above. They're fine lenses, but offer a very modern look.
PS, I can't agree with the Zeiss recommendation above. They're fine lenses, but offer a very modern look.