The problem is exactly those extra mini-flares. Of course the sunstar that summicron makes is just perfect. But then those repeating spots on the side, I find very disturbing. In the summicron shot the camera was pretty much stopped down. f/8 if I remember correctly. The Sonnar shot was handheld, probably at f/2.8. The longer the exposure the more I get these spots.
In both shots I used filters, in the first one a Leica UVa and in the second one a B+W MRC. But I doubt this can be the filter. First because I have tried with many filters and I always get the same thing. Second, because there are just too many glasses between the filter and the sensor, and they bend the light trajectory. If there is a reflection from the filter, it should appear somewhere else on the image and not right beside the original lightsource.
I did not use any hood for the shots.
And no, these are definitely not LED lamps, that I am sure.
And no, no such effect on film from the Summicron. No such effect with the same Summicron on X-T1 either, but I don't have a sample shot to show you.
I am not sure how much of a stringent test this is, but all I am trying to do is a normal night shot in the street with some ordinary urban light sources. I am really not trying to push the camera to its extremes and see what happens. I noticed these just by accident as I was trying to find a "good" version of my shots and I kept bumping into these spots. Note that the second shot is taken with the camera's native prime lens, and is no ad-hoc combination. One imagines that it should work with no issue.
