The Voigtländer Vitoret DR, closely related, was introduced around 1964 as a 35 mm camera economic rangefinder and replaced by a redesigned 1966 corners of squarer body version. This was discontinued in 1971. DR differs only slightly from the model D the shutter was Prontor 300. The 300 represents the maximum speed of the shutter. a coupled rangefinder was included, but the meter was the same as the version uncoupled D. Most of the DR's were completed in the normal black artificial leather, but a later version included vinyl wood grain [1]. Voigtländer was one of the camera manufacturers and oldest in the world goals. The brand is still used by other companies. Voigtländer was founded in 1756 in Vienna, Austria, by Johann Christoph Voigtländer, as a manufacturer of scientific instruments. Voigtländer was optical and inventor, famous for his work in the field of mathematical instruments, and was the holder of a patent (a monopoly protected by the state, precursor of a patent) of the Austrian Government, which granted an exclusive right to carry out this activity. For example, Voigtländer invented instruments for measuring linear, circular (ie, to measure distances and angles and divide very accurately) that were used to calibrate and surveying instruments navigation, including the astrolabe.
