The base model of GR series, R1 was introduced in the market 1994. It was noticed with a thin body which was thinner than the film cartridge. GR1, a film model which has been realized for its high image quality beyond SLR in a palm-sized body. This model was introduced in 1996. As for GR series film camera, 5 models has been released. GR series became a digital camera on 2005. It appeared to the market one size smaller than the film era. GR series became an unusual and unique digital camera for amateur.