Please give me tips for ballroom dancing
I was asked to be a photographer for a dancing studio competition this Sunday.
The date of this event is very convenient for me because, there is a birthday party for family friends on Saturday, so it gave me a good reason to rent Nikon AF-S 70-200mm f/2.8 VR (not the new version) for the weekend. I also will rent 3x SB-800 flash units. This is not a paid job, so there's not much responsibility.
And on top of all things, my sister is also in that competition, which means I am not really wasting my $40 for weekend rental of 70-200mm lens and SB-800 units because at least 30% of the photos will be for my own benefit, and other 70% for other people and for studio.
My equipment will be:
Nikon AF-S 24-70mm f/2.8 G ED
Nikon AF-S 70-200mm f/2.8G VR ED-IF (rental)
Nikon MB-D10 battery grip (rental)
3x Nikon SB-800 flash units (rental)
I am fairly familiar with all of the Nikon settings.
The place is very very large, with florescent lightning. However during the dances, they will turn off all of them except central one, and have spot lights from corners of the dancing arena (I assume they will be just regular tungsten-like spot lights)
I would be glad for any tips because this is the first time I am doing high-speed action photography, and it's different than centre-frame focus and recompose that I am used to.
ISO used for example. Or should I stay at f/2.8 or it's better to stop down to f/4 and bump ISO 1 stop to make sure that I don't get one dancer in focus, and the other one OOF
Additionally, some newbie like questions:
-what metering should be used
-should WB be set to Auto or Flash or Manual? What if during the process, I decide to turn off the flash for couple of candids, but forget to change WB from Flash to something else, then part of the pics will come out blue. Will it be fixable in JPEG? (I don't want to shoot RAW because of buffer linitations and because most of these pics will be posted on website in 800x600 resolution)
-what would be a logical way to place the flash units? One will be on camera in Master/Commander mode, and 2 others in Slave mode. The place has high "basketball-like" white ceilings, so bouncing is possible, but I am just not sure about 2 other flashes that will be off camera and their placement. Should they also bounce, or act more like fill lights? Should they be used with diffusers or white business-size card thing (you can tell I never used flash) on top?