This is the object of my lens test: The main train station in Zurich at night.
Equipment: T3n, 28mm/f1.8UC, Fuji Sensia 100, Manfrotto 190 Tripod, Self timer triggered by cable switch. Scanned with Minolta Dimage Scan DualII with 2820 dpi.
I made pictures with apertures from f1.8 to f8.
This shot was taken with fully open aperture f1.8.
You can see the comas of the lights, and the overall impression is somewhat soft.
But it is getting better at f2.8 and fine at f4, afterwards the improvement is not steep anymore.
Let's go into details with the next cropped pictures...