1. A method of auto-focusing a digital camera in still image and/or video recording mode, comprising: projecting at least one light spot toward a target subject; capturing a first viewfinder image of the target subject having the at least one light spot in response to the projecting step; programmatically determining a distance of the target subject from the digital camera using the viewfinder image with the at least one light spot and a triangulation measure of distance of the at least one light spot in the image; automatically focusing a digital camera lens based on the determining step; and electronically correlating the location of the at least one light spot in different viewfinder images to automatically stabilize the focus of a moving subject in a still image.