A tool that often gives us the illusion of being able to represent everything we see is the camera. Who hasn't tried, at least once, to use it to transmit to another person the sensations felt at the sight of something pleasant or unpleasant? How many times has the attempt been successful? An expert photographer never takes a single photograph of the same subject, just as a writer never publishes the first draft of a book. A photograph likes when it communicates its message and, for this to happen, it is essential to achieve a perfect balance between the determining factors: focal length of the lens, depth of field, shooting distance, sensitive material, image magnification, observation distance, etc. . Often the cause of failure is to be found in an attempt to represent something that lives in a three-dimensional space on the plane: the need arose to resort to three-dimensional photography, of which many ignore the existence and technique. The three-dimensional photographic image of any object can be reduced or enlarged to the desired scale, observed at the maximum optimal distance of one meter, measured accurately in all the details and, using particular equipment, graphically represented.