Quick advice on Summicron 50 needed

[richard_l]

One of the reasons for wanting the latest version is actually wanting to eliminate error sources in the "image chain".

Then either of the latest two versions of the 50mm Summicron is the obvious choice.

The guy I bought my 35mm from had a mint M4 Chrome with a 50mm googles Summicron on.

A chrome M4 with a Dual Range Summicron is the stuff of dreams.