>>4481785When shooting at night you're constrained by the minimum shutter speed you can hold without inducing motion blur
That usually ends up around 1/30th or 1/15th if you have a wide angle or very steady hands, but the rule of thumb is to get the shutter speed closest to your focal length (50mm --> 1/60, 28mm, 1/30th), and then reducing another stop when you really need it or can brace yourself.
If you're under ISO 3200 and for the kind of scene in
>>4481785 it's best to stay around f/2.
I usually shoot at 1/125th and ISO 6400 and adjust between f2.8 and f4 in "well lit light" (well lit streets, commercial areas), and then nudge my speed down as I need it when entering darker places.
Too much light won't hurt, but too little will make it hard to bring out in post.
Name of the game is finding the sweet spot where you're not taking in too much light, but everything you care about is captured.
Light doesn't change much once night has fallen, so I usually check the light meter a couple of times at the start, and then it's all vibes based, either nudge it brighter or darker in the range I believe I'll get a sharp image.
