City night scapes and buildings possibly some reflections on the water maybe lol thanks for ur reply
Okay so first of all the most important thing in my opinion for what your after is to get out if possible in the blue hour (roughly the first hour post sunset) while there's still some colour in the sky to keep it interesting..I've always found its best to try and balance your exposure so that your just about starting to over expose the windows in cityscapes as that way you'll still be able to recover them perfectly but will also have just about enough information in the rest of the scene to recover sufficient details, remembering of course it's night so your going to have dark areas so don't get too obsessed with exposing for everything keep it looking as natural as possible
From a tech standpoint, you'll be on a tripod so if your lens or camera has it turn off any image stabilisation, if it has it mirror lock up can be advantageous in this type of photography, though you don't have that issue if your mirrorless naturally
You'll find your shooting at about f/8-10 usually for this type of photography, basically shoot at what ever is the most sharp region on your lens, as you'll be shooting at a wide angle you have to worry a lot less about DoF
Stick to your base ISO it keeps things at clean as possible
Well not mandatory, I'd always advise shooting RAW it will give you so much more latitude to recover shadows and highlights in your processed image
Oh and get yourself a remote/release for your camera it will make the long exposures you need to shoot so much easier as you'll likely find you spend a lot of your time shooting full manual/bulb mode