Please explain when the setting 'Fast Motion Movie' is needed. What is the impact on picture quality and when is it useful?
Simple said, it only records every x frame, which results in a fast forward movie.
For example, if you skip every second frame, the resulting video has 15 fps. When then played in 30 fps, the movie has twice the speed as normal.
And as only half of the frames are recorded, it only takes half the space.
Hello Rein
The functions of time-lapse video recording are: 1. To ensure the integrity of the recorded content; 2. To save memory space.