Once you have chosen a suitable location, mount your camera on the tripod (or a stable area). Auto focus on the image you will be taking. Once you have achieved focus, turn off autofocus if you are timelapsing a landscape, or a low light picture. This will save battery on your camera, and prevent shots from not being taken (due to failure of autofocus). However, if you are doing a timelapse of people it is best to leave autofocus on, as your camera will always have something to focus on. For changing light conditions: use AV mode (or shutter priority), as your camera will automatically adjust to the changing light – such as in sunset timelapses. Make sure your camera is not set to auto white balance, as this can create flickering. To save battery – you can also turn of “image review” on your camera. Alternatively, you can use a Canon external power source cord to avoid running out of battery. - See more at: http://www.superstokedmagazine.com/article/2013/10/how-to-time-lapse-with-canon-eos-700d-a-how-to-time-lapse-guide/#sthash.nOEJeA5m.dpuf