Here's my 2c on cityscapes.
Get onto flickr and lok for tokyo night shots for ideas on where to go
Tripod is essential for night time shooting.
I usually shoot cityscapes in Av mode unless Im doing pano's in which case I use manual mode (to keep multiple exposures consistant)
I use ISO200
No filters
I use high f stops, usually f11+
I'm evenly split between manual and auto focusing. If you have an interesting foreground then know some basics about using hyperfocal distances for manual focusing. If that's all too hard auto focus on something 1/3 of the way into the scene.
Use either 2s timer, cable release or IR remote.
Consider shooting 3 shot brackets (of 1 1/2 to 2 stops apart) for HDRs (even if you don't know how to process them yet, at least capture the photos now)
Consider shooting panorama's (agian, even if you don't know how to process them yet). If you do shoot them with the camera in the vertical position and overlap a LOT. An L-plate would be handy for avoiding parallax errors but not essential.
Shoot lots.
Take your time, don't rush, look around you for best composition.
Last edited by twitch; 01-23-2011 at 08:00 PM.