This application works in conjunction with a dongle that connects to the Apple smartphone and a cable according to the characteristics of your device. The iPhone app can then remotely control the triggering device to prevent vibration, manage shooting time lapse, time lapse mode that can even be based on GPS data from iphone to trigger depending on the distance. A user can also trigger upon detection of a shock or a sound, such as when entering a face in the field. HDR fans will embrace for its ability to control the exposure with exposure bracketing of 19 cumulative views.
We can try to apply a variation of the frequency of shooting depending on the progress in time to speed up or slow down the film when the shows then.
To use Trigger Trap should be independently purchase the app on itunes store TriggerTrap (7.99 euros) and cable adapter iphone on the site TriggerTrap ($ 19.95). A trial version is available.