45 x 107 format

Also known as: Vérascope format

The 45 x 107 mm stereo glass format was introduced in 1893 by Jules Richard. The format was developed for the Vérascope stereo camera designed by him. It was significantly smaller than the common 8.5 x 17 format, and also smaller than the 6 x 13 glass format. This made it possible to produce more compact and less expensive stereo cameras and stereoscopes.

The 45 x 107 format was used almost exclusively for glass stereoviews, and paper stereoviews in this format are scarce. The format provides ample space between the two images of the stereo pair, which was suitable for adding descriptive captions.

The 45 x 107 format became very popular, and other French manufacturers began developing instruments for the format. Renowned German manufacturers such as ICA and Ernemann also adopted 45 x 107 in their product lines of stereo cameras and stereoscopes.