A few weeks ago a fellow blogger asked me how you get the star effects on artificial light in night photos. That person thought it was a stupid question, but I disagree. I think it’s a good question and I think that it’s good to ask about stuff. Without asking questions, there would be no new knowledge.
In my two example shots, you can clearly see the star effect appearing when shooting at a small aperture (I shot at f/22).
Star Effect: f/22 | ISO 100 | 25,0 sec
No stars: f/4,5 | ISO 100 | 2,0 sec
Compare the two shot at 25,0 sec at f/22, ISO 100 and 2,0 sec at f/4,5, ISO 100.