Photography is the technique of capturing and storing of pictures using the camera. The stored picture is known as photo. Memorable moments can be captured and stored for future remembrance as photos. Photography is not simply limited to personal use, but it is used in all fields of science, for study purposes, for commercial purposes and also by security forces. After black and white photography and color photography, the digital photography evolved which soon became popular. Digital camera has replaced the film camera now and the cameras can be controlled automatically or manually. The advantage of digital system is the superior quality, but the images can be manipulated which is the only drawback.