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Polavision was an "instant" color home movie system launched by
Polaroid Polaroid may refer to: * Polaroid Corporation, an American company known for its instant film and cameras * Polaroid camera, a brand of instant camera formerly produced by Polaroid Corporation * Polaroid film, instant film, and photographs * Polar ...
in 1977. Unlike other motion picture
film stock Film stock is an analog medium that is used for recording motion pictures or animation. It is recorded on by a movie camera, developed, edited, and projected onto a screen using a movie projector. It is a strip or sheet of transparent p ...
of the time, Polavision film reproduces color by the
additive Additive may refer to: Mathematics * Additive function, a function in number theory * Additive map, a function that preserves the addition operation * Additive set-functionn see Sigma additivity * Additive category, a preadditive category with f ...
method, like the much earlier Dufaycolor film. In essence, it consists of a black-and-white emulsion on a film base covered with microscopically narrow red, green and blue filter stripes.The Land List -- Film Index
, The Land List. (Sections: "Type 608", Additive process, density problems; "Polachrome CS", Polavision/Polachrome negative differences.) Article retrieved 2006-12-01.
It was instant in the sense that it could be very quickly and easily developed in the Polavision processing unit after it was removed from the Polavision camera, ready for viewing in only a few minutes. The Polavision cartridge is a small rectangular box containing the film reels and a small lens and prism for projection at an open gate. The film format is similar to the super 8 mm format, but without the Polavision tabletop viewer the only way a Polavision film can be shown is by destroying the cartridge and projecting the removed film with an ordinary super 8 mm projector or transferring it to video with a telecine system. The Polavision system was a major commercial failure, and was discontinued in 1979. However, the underlying technology was improved and used as the basis for the Polachrome instant color transparency system introduced in 1983.


Problems and commercial failure

Due to the light loss caused by the filtering layer, which allows only red, green or blue light to pass through any given point on it, the film had relatively low light sensitivity (40
ASA ASA as an abbreviation or initialism may refer to: Biology and medicine * Accessible surface area of a biomolecule, accessible to a solvent * Acetylsalicylic acid, aspirin * Advanced surface ablation, refractive eye surgery * Anterior spinal ar ...
) and the developed footage has an overall veil that appears to be a neutral gray. The system features a standalone tabletop viewer designed to minimize the problems inherent in projecting such dense film. Somewhat resembling a small television, it projects the inserted film cartridge onto its translucent screen from behind, but critics from publications like ''
Consumer Reports Consumer Reports (CR), formerly Consumers Union (CU), is an American nonprofit consumer organization dedicated to independent product testing, investigative journalism, consumer-oriented research, public education, and consumer advocacy. Founded ...
'' called the images "murky and dark". Despite this (or perhaps because of it), the format was used by artists, including Charles and Ray Eames, Stan Brakhage and Andy Warhol. One market niche Polaroid promoted was the field of industrial testing, where the camera would record, for example, the destruction of a pipe under pressure. This type of use was moderately price-insensitive, with the ability to get the images quickly (thus reducing wasted crew time) a very positive selling feature. The system was late to market and had to compete with upcoming
Betamax Betamax (also known as Beta, as in its logo) is a consumer-level analog recording and cassette format of magnetic tape for video, commonly known as a video cassette recorder. It was developed by Sony and was released in Japan on May 10, 1975, ...
and VHS videocassette-based systems, which in the pre- camcorder era of the late 1970s had the disadvantages of much greater bulk and much higher initial hardware cost. However, a standard videocassette ran for at least an hour at the highest-quality speed, while a Polavision cartridge contained less than three minutes of film, at a far higher per-minute cost than the finest videocassette tape. It could not be erased and reused, or shown on a real television set with a larger screen, and there was no sound. Polavision proved to be an expensive failure, and most of the manufactured equipment was sold off in 1979 as a job lot at a loss of $68.5 million. In the wake of those losses, Polaroid chairman and founder
Edwin H. Land Edwin Herbert Land, ForMemRS, FRPS, Hon.MRI (May 7, 1909 – March 1, 1991) was an Russian-American scientist and inventor, best known as the co-founder of the Polaroid Corporation. He invented inexpensive filters for polarizing light, a ...
resigned the chief executive position in 1980 and left the company two years later.Blumstein, Michael (1982-07-28
"Era Ends as Land Leaves Polaroid"
The New York Times. Retrieved 2008-11-06.
Former Polaroid freelancer Paul Giambarba remarked,


Polavision screenings

Polavision film is rarely screened in public, but it has happened, at such venues as
Anthology Film Archives Anthology Film Archives is an international center for the preservation, study, and exhibition of film and video, with a particular focus on independent, experimental, and avant-garde cinema.Andy Warhol Museum in Pittsburgh, and at the San Francisco Lesbian & Gay Film Festival in 2001.


Polachrome and other 35 mm films

In 1983, Polaroid introduced an "instant" transparency (
slide film 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 (abbreviated ...
) system for still photography. Each roll of 35 mm film came with its own small packet of processing chemistry. After exposure, the film and its packet were loaded into a small hand-cranked machine called an "AutoProcessor".Tom Ang, "Silvery Sleight of Hand", in "Camera," September 1983Polaroid 35mm Instant Slide Film: Introduction and Overview
Jim's Web. Page no longer exists, accessed via the Wayback Machine web archive. Article retrieved 2006-12-01.
The time it required to produce a fully developed film ready for mounting varied from between two and five minutes, depending on the type of film. Polaroid produced several types of AutoProcess-compatible 35 mm film: * Polachrome was a color slide film. It was descended from the Polavision system and used the same additive color ( RGB filter stripe) process. One difference was that with Polavision, the negative layer remained as part of the film after processing. It was of low
optical density Absorbance is defined as "the logarithm of the ratio of incident to transmitted radiant power through a sample (excluding the effects on cell walls)". Alternatively, for samples which scatter light, absorbance may be defined as "the negative lo ...
(max. 0.3), but nevertheless reduced the contrast of the image. With Polachrome, the negative layer was discarded after processing. Marketed broadly, it was touted to professional photographers for making test shots to evaluate a setup before final shooting was done with their usual film. Its distinctive muted color rendition and the line structure visible in enlargements won it a small following as a unique artistic medium in itself. It remained in production for nearly 20 years. * PolaPan was a monochrome (" black-and-white") slide film."Self Service Polaroid Bravo Slides
Center for Instructional Support, University of Hawai‘i. Article revised June 1996. Retrieved 2006-12-01.
"PolaPan" is a portmanteau of Polaroid and Panchromatic. The PolaPan name had also been used in connection with Polaroid roll print films Type 42 PolaPan 200 (200 ASA film speed) (also Type 32) and Type 44 PolaPan 400 (400 ASA film speed in daylight). * Polablue was a slide film with a particular blue color cast. * Polagraph was a high-contrast color transparency film intended for reproducing subjects like graphs or diagrams. * PolaScope (Type 410 10,000 ASA) was a high-contrast film intended specifically for photographing
oscilloscope An oscilloscope (informally a scope) is a type of electronic test instrument that graphically displays varying electrical voltages as a two-dimensional plot of one or more signals as a function of time. The main purposes are to display repetiti ...
("scope") traces. Polaroid AutoProcess slides could be viewed or projected in the same way as 35 mm slides made with conventional films.


See also

* List of film formats


References


External links


The Land List


by C Houston.

by Paul Giambarba.

The New York Times, July 28, 1982. {{Polaroid Film and video technology Photographic films Instant photography Polaroid cameras