Fuji Photo Film Co., Ltd. announced a new 8mm film standard–Single 8–at about same time as Super 8. The film format was the same as the Kodak Super 8, but the shape of the cartridge was quite different. The Kodak Super 8 system had the largest share of the global market, but Single 8 models were developed mainly for the Japanese market. Maximized parts reuse from Super 8 models to Single 8 models was studied at the R&D stage. The cartridge-loading methods of Super 8 and Single 8 systems were symmetrical. For this reason, designing a reversed Super 8 model as a Single 8 model was once studied. Actually, a test model with the viewfinder on underside of the camera, was produced, but it was not easy to handle, and this idea was abandoned.

This model had the same specifications as the Zoom 518 Super 8 (marketed in 1964), but it had a very stiff design with a battery compartment on the die-cast exterior and a fixed grip. This camera had a rewinding crank, which was unique to the Single 8 system, and it was accepted by many 8mm movie camera lovers.