O, great lens; Usually when it comes to night time, I always stick to the fastest aperture. So in your case, f/1.7 and for shutter speed, no less that double your focal length (if you can hold still well at 1/50th shutter) Thanks for watching, Dylan!
I shoot in RAW and alter some of my colors in post. And photos at night tend to be grainy since the ISO has to be boosted high and it helps get that look!
