The optical and electronic instruments in this series were designed on the basis of a collaboration between the National Geographic science and education organisations and Bresser, a German manufacturer of optical instruments. Bresser was chosen for this collaboration because of the high quality of its products, its brand reputation and its popularity in the optics market. This product line not only includes optical instruments such as telescopes and binoculars, but also weather stations, radios, batteries, magnifying glasses and more.