query: main_subject the naked eye 
supports: The True Story of the Civil War is a 1956 American short documentary film directed by Louis Clyde Stoumen. It won an Academy Award in 1957 for Documentary Short Subject. The Academy Film Archive preserved "The True Story of the Civil War" in 2005. William Henry Fox Talbot (11 February 180017 September 1877) was a British scientist, inventor and photography pioneer who invented the salted paper and calotype processes, precursors to photographic processes of the later 19th and 20th centuries. His work in the 1840s on photomechanical reproduction led to the creation of the photoglyphic engraving process, the precursor to photogravure. He was the holder of a controversial patent which affected the early development of commercial photography in Britain. He was also a noted photographer who contributed to the development of photography as an artistic medium. He published "The Pencil of Nature" (184446), which was illustrated with original salted paper prints from his calotype negatives, and made some important early photographs of Oxford, Paris, Reading, and York. Direct-to-video or straight-to-video (also known as direct-to-VHS, direct-to-DVD, direct-to-Blu-ray, direct-to-digital, etc.) refers to the release of a film to the public immediately on home video formats rather than a theatrical release or television broadcast. Because inferior sequels or prequels of larger-budget films may be released direct to video, references to direct-to-video releases are often pejorative. Direct-to-video release has also become profitable for independent filmmakers and smaller companies. The Naked Eye is a 1956 American documentary film about the history of photography directed by Louis Clyde Stoumen . It was nominated for an Academy Award for Best Documentary Feature . Rollfilm or roll film is any type of spool-wound photographic film protected from white light exposure by a paper backing, as opposed to film which is protected from exposure and wound forward in a cartridge. The term originated in contrast to sheet film. Confusingly, roll film was originally often referred to as "cartridge" film because of its resemblance to a shotgun cartridge. The opaque backing paper allows roll film to be loaded in daylight. It is typically printed with frame number markings which can be viewed through a small red window at the rear of the camera. A spool of roll film is usually loaded on one side of the camera and pulled across to an identical take up spool on the other side of the shutter as exposures are made. When the roll is fully exposed, the take up spool is removed for processing and the empty spool on which the film was originally wound is moved to the other side, becoming the take up spool for the next roll of film. The metal-based daguerreotype process soon had some competition from the paper-based calotype negative and salt print processes invented by William Henry Fox Talbot. Subsequent innovations reduced the required camera exposure time from minutes to seconds and eventually to a small fraction of a second; introduced new photographic media which were more economical, sensitive or convenient, including roll films for casual use by amateurs; and made it possible to take pictures in natural color as well as in black-and-white. Louis Clyde Stoumen (July 15, 1917  September 13, 1991), known as Lou Stoumen, was an American photographer, film director and producer. He won two Academy Awards; the first in 1957 for Best Documentary Short Subject ("The True Story of the Civil War"), and the second in 1963 for Best Documentary Feature (""). Film stock is an analog medium that is used for recording motion pictures or animation. It is a strip or sheet of transparent plastic film base coated on one side with a gelatin emulsion containing microscopically small light-sensitive silver halide crystals. The sizes and other characteristics of the crystals determine the sensitivity, contrast and resolution of the film. The emulsion will gradually darken if left exposed to light, but the process is too slow and incomplete to be of any practical use. Instead, a very short exposure to the image formed by a camera lens is used to produce only a very slight chemical change, proportional to the amount of light absorbed by each crystal. This creates an invisible latent image in the emulsion, which can be chemically developed into a visible photograph. In addition to visible light, all films are sensitive to X-rays and high-energy particles. Most are at least slightly sensitive to invisible ultraviolet (UV) light. Some special-purpose films are sensitive into the infrared (IR) region of the spectrum. A documentary film is a nonfictional motion picture intended to some aspect of reality, primarily for the purposes of instruction, education, or maintaining a historical record. Such films were originally shot on film stockthe only medium availablebut now include video and digital productions that can be either direct-to-video, made into a TV show, or released for screening in cinemas. "Documentary" has been described as a "filmmaking practice, a cinematic tradition, and mode of audience reception" that is continually evolving and is without clear boundaries. The Academy Awards, or "Oscars", is an annual American awards ceremony hosted by the Academy of Motion Picture Arts and Sciences (AMPAS) to recognize excellence in cinematic achievements in the United States film industry as assessed by the Academy's voting membership. The various category winners are awarded a copy of a statuette, officially called the Academy Award of Merit, which has become commonly known by its nickname "Oscar." The awards, first presented in 1929 at the Hollywood Roosevelt Hotel, are overseen by AMPAS. Calotype or talbotype is an early photographic process introduced in 1841 by William Henry Fox Talbot, using paper coated with silver iodide. The term "calotype" comes from the Greek ' (kalos), "beautiful", and ' (tupos), "impression".
candidates: archive color film fox hollywood hotel july nature photographer photography time true vhs war
answer: photographer