See how to shoot a time-lapse video using a DSLR and intervalometer. This video tutorial covers everything from settings you should use to making the time-lapse video in QuickTime.
An intervalometer is an attachment for a digital camera that operates the shutter at set intervals over a period of time, which is usually used for time-lapse photography. The Canon Time Remote Control (TC-80N3) works or this purpose.
Make sure to set the camera to JPG, manual white balance, manual exposure, and drag your shutter as much as possible.