Patent ID: 8774614
Filing Date: 2014-07-08
Classification: G03B

Abstract:
1. A method for generating a sequence of time-lapse photographs, the method comprising the steps of: a. entering into a software program installed on an electronic device a camera aperture value, a camera sensitivity value and a camera shutter speed value to establish an initial image luminance near the desired image luminance value; b. executing the software program to control a camera to capture a plurality of images having a time-lapse interval between said images; c. gradually increasing the camera shutter speed value to maintain said desired image luminance; d. incrementally increasing the camera sensitivity value when the camera shutter speed value increases beyond the camera sensitivity shift time; e. causing a corresponding reciprocal change in the camera shutter speed value whenever the camera sensitivity value changes incrementally; f. automatically and gradually increasing the camera shutter speed value by the software program to maintain the desired image luminance when the camera sensitivity value has not attained a maximum value; and g. incrementally increasing the camera sensitivity value whenever the camera shutter speed value increases beyond the camera sensitivity shift time and making a corresponding reciprocal change by the software program in the camera shutter speed value whenever the camera sensitivity value is incrementally changed.