a film pack, but each film envelope contains all the chemical layers to expose, develop, and fix the photo. It was introduced in 1972. Polavision was an instant motion picture film. Polavision was introduced by Polaroid in 1978, with an image format similar to Super 8 mm film, and based on an additive color process. Polavision required a specific camera and tabletop viewer, and was not a commercial success, but did lead to the development of an instant 35 mm color slide film. Polavision film has been taken off the market. Polachrome was an easy to develop 35 mm film, available in color, monochrome and 'blue' formats (the latter intended for making title cards). Each roll of film came with a cartridge containing developing chemicals which were pressed between the film and a developing strip by a hand-cranked machine called the AutoProcessor. The AutoProcessor was very cheap and did not require a darkroom; the results were somewhat variable, the resolution was not as good as conventional film due to the matrix of tiny red, green and blue filters required to make the monochrome emulsion work in color, and the sensitivity was low, even for slide film; in tungsten light, Polachrome CS is rated at ISO 40. It was introduced in 1983. Polaroid integral film packs usually contain a flat "Polapulse" electrical battery, which powers systems in the camera, including exposure and focusing mechanisms, electronic flash, and a film ejection motor. The inclusion of the battery within the film pack ensures that a fresh battery is available with each new pack of film. Polaroid no longer produces instant film. It has become an organization which licenses its brand name to other manufacturers. An example of this is the Polaroid 300 camera, which is a Polaroid branded Fuji Instax. Polaroid PIF-300 film is essentially rebranded Fuji Instax mini film. Preservation Polaroids have the same storage standards under ISO 18920:2000 as any other photograph. Regular storage conditions should be less than 70 degrees Fahrenheit (21 degrees Celsius) and between 50% and 30% relative humidity (RH). Cold storage (0 degrees Fahrenheit / -17 degrees Celsius optimum) is not helpful unless RH can be controlled and cold storage RH is generally drier than required. RH below 30% will create an environment that is too dry and may cause the photograph to curl. A Polaroid transfer removes the emulsion from the plastic backing and residual chemicals,