A china girl (known as china boy or china animal) is a type of test film, an image of a woman, a man, an animal or an item accompanied by color bars that appears for a few frames (typically one to four) in the reel leader. A "China Girl" was used by the lab technician for calibration purposes when processing the film (with the still photography equivalent being a "Shirley Card"). [1] The origin of the term is a matter of some dispute [2] but is usually accepted to be a reference to the models used to create the frames - either they were actually china (porcelain) mannequins or the make-up worn by the live models made them appear to be mannequins.
Originally the "China Girl" frames were created in-house by laboratories to varying standards, but in the mid-1970s engineers from the Eastman Kodak Company developed the Laboratory Aim Density system as a means of simplifying the production of motion picture prints. Under the LAD system, Kodak created many duplicate negatives of a single China Girl and provided them to laboratories to include in their standard leaders. These LAD frames were exposed to specific guidelines and allowed a laboratory technician to quickly make a subjective evaluation of a print's exposure and color tone by looking at the China Girl herself. If a more objective evaluation were required, a densitometer could be used to compare the density of the color patches in the LAD frame with Kodak's published guidelines.
In keeping with changes to the modern laboratory process, Kodak also provide a "Digital LAD" to be incorporated in the film-out process to check the accuracy of the film printer and processor.
In 2005, "China Girl" images were the subject of an art exhibit by Julie Buck and Karin Segal at the Harvard Film Archive [3]
The "China girl" has occasionally appeared as a visual trope in experimental films over the years. Some experimental films which use "China girls" include Cosmic Ray (1962) by Bruce Conner, Film in Which There Appear Edge Lettering, Sprocket Holes, Dirt Particles, Etc. (1965–66) by Owen Land, New Improved Institutional Quality: In the Environment of Liquids and Nasals a Parasitic Vowel Sometimes Develops (1976) by Owen Land, Girls on Film (2005) by Julie Buck and Karin Segal, MM (1996) by Timoleon Wilkins, Standard Gauge (1984) by Morgan Fisher, To the Happy Few by Thomas Draschan and Stella Friedrichs, China Girls (2006) by Michelle Silva, and Releasing Human Energies (2012) by Mark Toscano.
"China girl" images appear during the closing credits of Quentin Tarantino's Death Proof . [4]
The narrator and main character in the 2013 novel The Flamethrowers by Rachel Kushner shares her experience as a China Girl model for a film lab in New York City.
35 mm film is a film gauge used in filmmaking, and the film standard. In motion pictures that record on film, 35 mm is the most commonly used gauge. The name of the gauge is not a direct measurement, and refers to the nominal width of the 35 mm format photographic film, which consists of strips 1.377 ± 0.001 inches (34.976 ± 0.025 mm) wide. The standard image exposure length on 35 mm for movies is four perforations per frame along both edges, which results in 16 frames per foot of film.
8 mm film is a motion picture film format in which the film strip is eight millimetres (0.31 in) wide. It exists in two main versions – the original standard 8 mm film, also known as regular 8 mm, and Super 8. Although both standard 8 mm and Super 8 are 8 mm wide, Super 8 has a larger image area because of its smaller and more widely spaced perforations.
Super 8 mm film is a motion-picture film format released in 1965 by Eastman Kodak as an improvement over the older "Double" or "Regular" 8 mm home movie format.
127 is a roll film format for still photography introduced by Kodak in 1912.
110 is a cartridge-based film format used in still photography. It was introduced by Kodak in 1972. 110 is essentially a miniaturized version of Kodak's earlier 126 film format. Each frame is 13 mm × 17 mm, with one registration hole. Cartridges with 12, 20, or 24 frames are available on-line. Production variations sometimes have allowed for an additional image.
Disc film is a discontinued still-photography film format that was aimed at the consumer market. It was introduced by Kodak in 1982.
Kodachrome is the brand name for a color reversal film introduced by Eastman Kodak in 1935. It was one of the first successful color materials and was used for both cinematography and still photography. For many years, Kodachrome was widely used for professional color photography, especially for images intended for publication in print media.
In photography, reversal film or slide film is a type of photographic film that produces a positive image on a transparent base. Instead of negatives and prints, reversal film is processed to produce transparencies or diapositives. Reversal film is produced in various sizes, from 35 mm to roll film to 8×10 inch sheet film.
C-41 is a chromogenic color print film developing process introduced by Kodak in 1972, superseding the C-22 process. C-41, also known as CN-16 by Fuji, CNK-4 by Konica, and AP-70 by AGFA, is the most popular film process in use, with most, if not all photofinishing labs devoting at least one machine to this development process.
The Cineon System was one of the first computer based digital film systems, created by Kodak in the early 1990s. It was an integrated suite of components consisting a Motion picture film scanner, a film recorder and workstation hardware with software for compositing, visual effects, image restoration and color management.
A standard test image is a digital image file used across different institutions to test image processing and image compression algorithms. By using the same standard test images, different labs are able to compare results, both visually and quantitatively.
High-speed photography is the science of taking pictures of very fast phenomena. In 1948, the Society of Motion Picture and Television Engineers (SMPTE) defined high-speed photography as any set of photographs captured by a camera capable of 69 frames per second or greater, and of at least three consecutive frames. High-speed photography can be considered to be the opposite of time-lapse photography.
Digital photography uses cameras containing arrays of electronic photodetectors interfaced to an analog-to-digital converter (ADC) to produce images focused by a lens, as opposed to an exposure on photographic film. The digitized image is stored as a computer file ready for further digital processing, viewing, electronic publishing, or digital printing. It is a form of digital imaging based on gathering visible light.
Julie Anne Buck is an American film producer, collage artist, photographer, experimental filmmaker, and film archivist.
Color motion picture film refers both to unexposed color photographic film in a format suitable for use in a motion picture camera, and to finished motion picture film, ready for use in a projector, which bears images in color.
Analog photography, also known as film photography, is a term usually applied to photography that uses chemical processes to capture an image, typically on paper, film or a hard plate. These processes were the only methods available to photographers for more than a century prior to the invention of digital photography, which uses electronic sensors to record images to digital media. Analog electronic photography was sometimes used in the late 20th century but soon died out.
A color chart or color reference card is a flat, physical object that has many different color samples present. They can be available as a single-page chart, or in the form of swatchbooks or color-matching fans.
Within the printing industry, the Approval proofer, also known as the Approval Digital Imaging System or Kodak Approval System, was designed for use in Prepress proofing, especially for the highest quality contract proofs.
Technicolor is a series of color motion picture processes, the first version dating back to 1916, and followed by improved versions over several decades.
Test film are rolls or loops or slides of photographic film used for testing the quality of equipment. Equipment to be tested could include: telecine, motion picture film scanner, Movie projectors, Image scanners, film-out gear, Film recorders and Film scanners.