Time Lapse
iPhoneography is gaining popularity and as the quality of phone cameras improves it is being taken more seriously, the video functions on phones is also very good allowing you to capture full HD footage on the device you carry with you every day.
Time lapse is performed by taking photographs at set intervals and then combining them to form a movie. Smartphones are an ideal tool for capturing time lapses with no additional equipment. By using a free or low cost app you can either use the phone to capture a series of stills or to capture and produce a video clip.
The Triggertrap App, available free for both Android and iOS can use your internal camera or with the dongle you can trigger your SLR at the required set intervals
Other apps that can capture and produce timelapse movies are iMotion HD and Miniatures (the free version is limited to lower res 10s clips) but this can also add the tilt-shift effect to your movies, which is quite effective combined with time lapse.
One limitation of making time lapse movies is that it is difficult to pan the camera during the capture of the images without jerking. I use a small device to rotate the phone whilst the images are being captured.
With the Muvi X-Lapse the camera is slowly rotated and setting the capture rate to 1s gives a fairly smooth pan, as can be seen in the following video, which was created with Miniatures and then edited in iMovie