Beaulieu was founded in France by Marcel Beaulieu, whose first cameras appeared in the early 1950s in Charenton-le-Pont, near Paris. The company built a following among serious amateur and professional film-makers with high-quality motion-picture cameras in 8 mm, 9.5 mm and 16 mm formats, and it continued to develop new models through the following decades.

Beaulieu is best known for technically advanced cameras with features that were unusual in their class, including reflex viewing through the taking lens, interchangeable lenses and sophisticated exposure systems. Landmark models include the R16 for professional 16 mm work and the Super 8 range that progressed from the 2008 through the 4008, the sound-recording 5008 series and the later 6008 and 7008 cameras. The company also produced projectors such as the 708 EL, and its equipment remains prized by film-makers and collectors. The cameras were often fitted with high-quality interchangeable C-mount optics, and their reflex finders gave film-makers an accurate view of exactly what the lens was recording, features that set them apart from simpler home-movie equipment.

Beaulieu service manuals document the mechanisms that make these cameras work: film transport and claw systems, motors and speed control, shutters, reflex viewfinders, lens mounts and exposure electronics, and the electrical circuits that power them. They include adjustment and timing procedures, lubrication points, wiring diagrams, fault-finding guidance and the maintenance information needed for careful servicing of precision camera mechanisms.

These manuals are valuable to film enthusiasts and collectors, camera repair technicians, and the cinematographers and archives that still use Beaulieu equipment for authentic film production.