1. A apparatus for simulating a long exposure-time image, comprising: means for capturing a sequence of digital images; a computer with memory coupled to said computer; and programming adapted for execution on said computer for, receiving a sequence of normal exposure images at a normal exposure time setting from said means for capturing, in which image capture duration of said normal exposure time setting is less than a desired long exposure interval over which a simulated long exposure time image is to be obtained, selecting a set of sequential images, from within said sequence of images, which span the desired long exposure interval, and combining the set of sequential images through temporal integration to create at least one long exposure image.