I just joined the Leica M world a month ago with a purchase of a M6 classic black and a 35 Summilux. I have taken quite a few rolls with it; I am very happy with the lens, as it exhibits a very soft, dreamy bokeh that is not seen with most of my Nikon WA lenses. However, I did find in some photos that I took with this lens a strange effect with the way artificial light sources (such as the red traffic light) gets washed out. (See photo below.) Even though I was using a slow shutter speed, I am sure the effect was not caused by camera shake as then everything (the people, the objects) in the photo should appear blurry, but they are not. My question is: 1) Is this what people mean by chromatic abberation? If not, what is this effect called and what is it caused by? 2) Is this effect a characteristic of this lens in general or is it just my sample? Thanks in advance for any answers. Photo data: Fuji Provia 100, exposure probably f1.4, 1/15 sec p.s. there are 1 or 2 tiny scratch marks on the lens, even though I don't think it should be the cause of the effect.