Your goal is to model/render a realistic camera. You may choose any type of camera that is used for photography, old or new, and any type of camera will do. From old-fashioned box-type wooden cameras from the turn of the century to modern DSLR's, the choice is up to you...but it must be a camera used for photography and not a movie type camera for making films. Good Luck. Articles and photos for reference can be found here: http://en.wikipedia.org/wiki/Cameras.