Introduction disc cameras
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Disc film was a film still-photography film format aimed at the consumer market, and introduced by Kodak in 1982.
The film was in the form of a flat disc, and was fully housed within a plastic cartridge. Each disc held 15 exposures, the disc being rotated 24° between each image. The fifteen 11 x 8 mm images themselves were arranged around the outside of the disc.
The system was primarily a consumer-orientated product, and most cameras were self-contained units with no expansion capability. The cameras were very simple to load and unload, and were generally completely automated. The cassette had a built-in dark slide to prevent stray light reaching the film when the disc was removed.
As the film was rotated on a disc instead of over a spool, the cassette was very thin, as were most of the cameras. The completely flat nature of the format also led to the (potential) advantage of greater sharpness over spool-based cassette formats (such as 110 and 126 film). Disc film has a very thick acetate base, comparable with 5"x4" sheet film, which holds the film much flatter than the other formats
Disc film did not prove hugely successful, mainly because the image on the negative was only 11 mm by 8 mm, leading to generally unacceptable grain and poor definition in the final prints. The film was intended to be printed with special 6-element lenses from Kodak, but many labs simply printed discs with standard 3-element lenses used for larger negative formats. The resulting prints often disappointed the consumer.
The film was officially discontinued by the last manufacturer, Kodak, on December 31, 1999, though the cameras had disappeared from the market long before then.