I'm going to be photographing a nightclub tonight. This

File: Party-nightclub.jpg (4MB, 2716x1810px) Image search: [Google]

4MB, 2716x1810px

I'm going to be photographing a nightclub tonight. This is my first time doing something like this.
What should I keep in mind?

I have a 10-18mm f/4.5-5.6 and a 30mm f/1.4, which one should I use?
Should I try shooting wide open, high ISO, or should I just use my flash?

Any tips are welcome. Thanks.

[EXIF data available. Click here to show/hide.]

Camera-Specific Properties:
Equipment Make	Canon
Camera Model	Canon EOS 5D Mark III
Camera Software	Adobe Photoshop CS6 (Windows)
Image-Specific Properties:
Image Width	5597
Image Height	3731
Number of Bits Per Component	8, 8, 8
Pixel Composition	RGB
Image Orientation	Unknown
Horizontal Resolution	0 dp
Vertical Resolution	0 dp
Image Created	2013:09:14 09:24:46
Image Created	2013:09:01 18:41:56
Exposure Time	1/200 sec
F-Number	f/5.6
Exposure Program	Manual
ISO Speed Rating	200
Lens Aperture	f/5.7
Exposure Bias	0 EV
Subject Distance	0.00 m
Metering Mode	Pattern
Flash	No Flash, Compulsory
Focal Length	45.00 mm
Comment	StockSubmitter|Business/Finance|People|People$Miscellaneous|0N|0000000000000000000000000000000000000000|[email protected]_20005030.634@[email protected]$People.Miscellaneous$@$@11$29@$@$@$@375$25@$@$@$@$@$@$@$@$@18$48@$@[email protected][email protected]$People.Miscellaneous$@85$98$@4$13@$@$@$@$@$@$@$5.0$@$@$@$@$@$@$@$$@$$|||$$-1$0$0|_______________________________________|0000000000000000000000000000000000000000|
Color Space Information	sRGB
Image Width	5597
Image Height	3731
Exposure Mode	Manual
White Balance	Auto