Single-8 was an 8mm motion picture film format for amateur use, introduced by Fujifilm in 1965 as an alternative to Kodak Super 8.
Single-8 and Super 8 are not interchangeable in cameras, but as the sprocket holes and soundtrack are in the same position, it is interchangeable in projectors. The Single-8 cartridge is shaped differently due to the use of two separate spools rather than Super 8’s coaxial system, and this means Single-8 can be rewound in the camera for double exposure.
Unexposed film sits in the upper chamber, and passes over the camera’s metal film gate (Super 8 used a plastic pressure plate built into the cartridge instead) into the lower chamber. On the back of the cartridge is a circular slot, the length of which tells the camera the film’s speed (25, 50, 100, 200 or 400 ISO) by the use of pins in the camera.
Single-8 was most widely available in Japan, but was also available in the US and Europe where it never achieved the popularity of Super 8 despite being regarded as technically superior.
Fujifilm ceased manuafacture of all types of Single-8 in 2012, although is still available from some specialists.
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