Introduction Police Photography Photography Greek words Photo – light Grapho – to draw  Photography - Is the art or science which deals with the reproduction of image through the action of light on sensitized material.  Police photography - An art or science that deals with the study of the principles of photography, or the preparation of the photographic evidence and its application to police works  Importance of photography  Police Photography  importance - For the preservation of the crime scene - For further reference in the court room - To refresh the memory of the victim or the witness - Court reference - For reconstruction of the crime scene.  History of photography  Police Photography  Camera obscura - Otherwise known as the pinhole camera - Invented by an Arabian Scholar, Alhazen  Geronimo cardano - In 1550, he fitted a bi-convex to a camera obscura  Daniel batbaro - Suggested to use a diaphragm to sharpen the image  Joseph niepce - French Scientist who first successfully used a camera obscura  Daguerreotype process - Invented by Daguerre in 1839 - It is a double box, which could slide to focus the image.  Thomas sutton - Invented the first single lens camera in 1880  R&j beck - Produced the first twin lens camera  rollieflex - Most famous twin-lens reflex  1888 - First roll-film camera by KODAK - It was invented by George Eastman  Thomas alba edison - In 1889, he produced the kinetograph camera that uses a 35 mm film  Lumiere cinematograph - Produced by Louise & Auguste Lumiere in France in 1895  Principal types of cameras  Police Photography  Box camera - Simplest type of camera - Composed of a light-tight box, lens, shutter and holder of the sensitized material  Basic parts of a camera  Police Photography  1. Light-tight box - An enclosure devoid of light  2. Lens - It focuses the light coming from the subject.  3. Shutter - Allows the light to enter through the lens and reach the film.  4. Holder of the sensitized material - Holds firmly the sensitized material. Principal types of cameras Crimtic 2