The 2.8 is really important. Most dances take place in low light situations, so you need a fast lens.
We get a whole range of shots- wide to tight. My favorites are the tight shots.
The way we like to light the scene is by suing an off camera flash- we love Alien Bees because they are sturdy and affordable.
We use Pocket Wizards and then try to stay the hell of each others shots!
While I prefer to use a Speedlight on top of my camera to give a more even light, Jayson likes to work with only the rim light effect of the studio light.
So our couples get a lovely range of pictures.
Wedding First Dance St Louis The Royale Photography Low Light Headshots Portraits