Quote Originally Posted by chip j View Post
I believe the non-Leica lens may be a Komura.

Sorry, chip j - the lens was made by Konishiroku - better known as Konica- sometime around the mid-1950's. It's a collapsable lens like the LTM Elmar 3.5, but it has click stops like the LTM Elmar f2.8 ( although a few late 3.5 Elmars did have click stops and an E39 filter thread ). The Hexar is a classic 4 element design like the Tessar and Elmar.