[JJ_SO]

Now I did the night-shots. Not many of them, it started to rain again and I'm a little bored with changing lenses and seeking for places with light sources at the right place, distance, brightness.

 

Both shots taken from the same spot. Used LiveView and manual focus to focus on what's in the cropped picture. With some difficulty for the Nikon, because if a lens has flaws it has them in LiveView as well.

 

First the Sigma @ f/1.4:



 

Now the Nikkor



 

Same scene, other (left) side with the Sigma



 

Now the Nikkor has a bit more troubles with that situation



 

Probably there is a focus setting which looks a bit better than this one. I didn't do a focus bracketing.

 

Also, one can say "during night i use my tripod and stop down" and that helps, in the center at least. But my reality is

• I like to use each aperture, not only the stopped down ones
  
• I like shooting at night and walking without tripod, so also shooting wide open and at high ISO. IQ? I know how to get higher IQ, those conditions are very static ones and there's no camera doing noiseless pictures at around ISO 10.000 - so, I'm fine with this "noise". I know worse from only ISO 800 films.
  
• I like shooting in low light situations
  

So far, the Nikkor served me well for 5 years. Now there's a new kid in town which is not worse although costing just a little [edit: not more, but] less than half the price of the Nikkor. I don't expect Nikon to make a better one at the same price. So, I can exchange the old with the better new one at practically no costs.