This is an application for the calculation of time-lapse, the interval shooting. The number of shots can be calculated from the shooting time and interval time. Time of video can be calculated from the video frame rate and a number of shots. The required capacity of the memory card can be calculated from the number of shots and th file size of a photo. How to use Enter the shooting time and interval time. Number of shots is calculated. Enter the video frame rate. Time of the video is calculated