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Gedeon, nice images! I never tire of seeing Leica photographs. The colors are, to my eye, unique and realistic. Is the 50mm Summicron R that you used on the above photos one of the newer version 2's?
Just today I Leitaxed a Leica 50mm f/2 Summicron lens I purchased. It's an early version 1 (made in 1964). It's got "red" lettering on the distance markings which I believe that they only did for a couple of years. I'll try to take some photos with it tomorrow and post them here.
I've read that there is not much difference between the version 1 and version 2's. But I've also read that some have said the version 2 is sharper, but the version 1 has better bokeh. I'll post some photos and let you know about what I think of the differences between the two versions. While I currently do not own a version 2. I did own one last year and do recall what I thought of it. I'll try to take some photos with my new version 1, of the same subjects I previously had taken with my version 2.