This question already has an answer here:
- Focus in night photography 1 answer
I have an Olympus OMD EM5 and a Leica 25mm which takes wonderful pictures in daylight.
I was trying to take night pictures with this setup and I had the following results (after several tries and double-checking)
f/1.4, 1.3s extremely blurry
f/2, 3.2s sharp
f/3.2, 8s sharper
I don't understand why this would happen. Is there any phenomenon responsible for that?