A stat camera is a large-format vertical or horizontal stationary camera used to shoot film for camera-ready artwork, and sometimes called a copy camera. This is a large bellows-type camera which consists of the copy-board, bellows and lens, and filmboard. The vertical type can take up relatively little space, while the horizontal fills two rooms; bellows, lens, and copyboard on one side of the wall; filmboard and darkroom on the other. The type of film used is black and white "orthochromatic"; i.e., it is more sensitive to some colors than others. Guidelines, or "keylines" are created in light blue which read as white; while anything red or close to a red hue appears as black. The stat camera would be used to shoot color separations (using hue filters for each of the four process colors) and to produce halftone film for printing using a special reticulated gel mask. Screen printers will use the films, or 'positives', to expose the silk screen.
What are the uses for a stat camera?
Using a "stat camera" is the most popular technique for generating positives needed to create photo-stencils. The stat camera is a large camera that works with particular photographic paper or film. "High contrast" materials are what these unique paper or films are. They can this only detect or see black and white images. Additionally, these materials produce a positive print without the need for a negative. These camera come from a wide variety of manufactures and models. A darkroom is required for several of these camera, and "safelight" handling procedures must be followed when handling the materials. The type of camera you'll be using is referred to as a "daylight" model. The materials are manageable in a room with standard lighting. This greatly improves the cameras usability. [1]
How are the images produced?
In earlier models, the developer had to remove the film from the camera after exposure and develop the picture in trays. The "daylight" versions often use an internal processor that scans the film within the camera. "Diffusion transfer" materials are the name given to the materials. An "imager" and a "receiver" are used in these materials. The camera receives the imager and makes the exposure on it. It is then pressed onto the "receiver" material in the processor after being carried there by the camera. After then, the substance "diffuses" or evolves. After that, they are separated, and the imager is discarded. The "receiver" is the one that is kept and turned into a "positive". [1]
This process is invaluable to direct preservation of artwork, since the digital camera mimics lighting settings, and there is no scanner big enough to encompass such works.
Sources
[1] Stat camera. (n.d.-e). https://www.oocities.org/tmvassallo/stat.htm
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Color temperature is a parameter describing the color of a visible light source by comparing it to the color of light emitted by an idealized opaque, non-reflective body. The temperature of the ideal emitter that matches the color most closely is defined as the color temperature of the original visible light source. Color temperature is usually measured in kelvins. The color temperature scale describes only the color of light emitted by a light source, which may actually be at a different temperature.
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Color correction is a process used in stage lighting, photography, television, cinematography, and other disciplines, which uses color gels, or filters, to alter the overall color of the light. Typically the light color is measured on a scale known as color temperature, as well as along a green–magenta axis orthogonal to the color temperature axis.
Perspective control is a procedure for composing or editing photographs to better conform with the commonly accepted distortions in constructed perspective. The control would:
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A field-sequential color system (FSC) is a color television system in which the primary color information is transmitted in successive images and which relies on the human vision system to fuse the successive images into a color picture. One field-sequential system was developed by Peter Goldmark for CBS, which was its sole user in commercial broadcasting. It was first demonstrated to the press on September 4, 1940, and first shown to the general public on January 12, 1950. The Federal Communications Commission adopted it on October 11, 1950, as the standard for color television in the United States, but it was later withdrawn.
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The Kodak Stereo Camera was a 35mm film stereo camera produced between 1954 and 1959. Similar to the Stereo Realist, the camera employed two lenses to take twin shots of scenes, which could then be viewed in dedicated image viewers. The lenses supported adjustable apertures and variable shutter speeds. The camera had a reputation for being easy to use, and sold approximately 100,000 units during the time it was produced.
Multi-image is the now largely obsolete practice and business of using 35mm slides (diapositives) projected by single or multiple slide projectors onto one or more screens in synchronization with an audio voice-over or music track. Multi-image productions are also known as multi-image slide presentations, slide shows and diaporamas and are a specific form of multimedia or audio-visual production.
This glossary defines terms that are used in the document "Defining Video Quality Requirements: A Guide for Public Safety", developed by the Video Quality in Public Safety (VQIPS) Working Group. It contains terminology and explanations of concepts relevant to the video industry. The purpose of the glossary is to inform the reader of commonly used vocabulary terms in the video domain. This glossary was compiled from various industry sources.
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