Mark C
Well-known
Would you say the v2 is closest in performance to the v2 summicron?
I have a vintage test from Camera 35 magazine comparing the new and old Summilux, and both to the rigid Summicron. They really only looked at resolution and the results were about as you would suspect with the Summicron on top. But the Summilux 2 was considered a very adequate substitute if you needed the speed. Still, the Summilux 1 had better wide open performance than I expected and very good stopped down performance. Center resolution was where the Summilux 2 showed improvement, and across the field performance was great with the Summicron. That test was one of the things that piqued my interest in the V1, along with some photos I've seen on the forum.
I was able to borrow a V1 Summilux from a fellow RFF member to shoot at a dance this evening so may finally be able to satisfy my curiosity. I alternated between the V1 and V2, and threw an early Sonnar 50/1.5 into the mix later in the evening. The film is drying now, so I'll at least get a good look at them on my light table in the morning.
I did run a quick focus confirmation as soon as I picked up the lens, and as I expected it focused spot on at 1.4 just like my V2. Comparable focus shift with both versions at f2.8.

