This is always a fun event to photograph. Encore, Commack High School's music booster club, runs this dinner-dance every year and gives out scholarships, this year to nine students. As you can see from the photos the kids, and teachers, had a blast. They're a tough group to keep up with. I shot most of the dance floor photos from the DJ's platform, which got me up above the action. The tilting LCD screen on my camera also came in handy, letting me raise the camera over my head. The lighting is low and the DJ's colored spots are sweeping the floor so you really need to use flash for all the photos. Luckily, the ceilings aren't that high so you can bounce your flash rather than point it directly at the crowd.
For this event I only used my 16-55mm. It was wide enough for the dance floor shots and I could zoom in for the presentations. Since I was using flash my shutter speed was at or below sync speed, mostly in the 1/60 - 1/200 sec. range. Even so, my ISO was up there, between 1250 and 4000, to prevent the flash from creating that "deer in the headlights" look. That let a lot of the ambient light mix in, which gave a more natural look but also produced an orange color cast in some photos, probably from the room light bouncing off all the wood. Given that the DJ's colored lamps were also lighting the crowd, this wasn't that big a deal.
All in all, a really fun night.