The golden era of stereo photography took place between the 1890’s and the 1920’s approximately. Many stereo cameras during this era used plates of specific sizes for each model being 120 rolls rarely used. During the 1950’s and 1960’s the stereoscopic photography revived briefly and new cameras using the then most common film formats appeared in the market, but mainly for amateurs. This trend encouraged the Russian maker Gomz, later Lomo, to launch the Sputnik, a medium format stereo camera using 120 film and making six pairs of images per roll.