A few years ago I traded away a Voigtlander 15mm/f4.5 Superwide Heliar as part of a deal. It was a good trade, but I recently felt a pining for that super wide focal length, so I bought a newer version of the lens (M-mount vs LTM, and it takes filters). I tried it out for the first time last Saturday at High Park, Toronto.

Voigtlander Bessa R2M, 15mm/f4.5 Superwide Heliar Aspherical II lens
Kodak TMax 400 developed in TMax Developer 1+4