the machines defective, Paillard had to start from scratch to invent a Bolex which had only kept the name of Boolsky's "invention". The Bolex as we know it is the invention of the engineers at Paillard. In 1932, Marc Renaud, a young engineer, inspired by the products of Paillard and assisted by Professor Ernest Juillard, began development of the Paillard H 16 camera. In 1935, the H 16 camera was put on the market, the 9.5 mm version followed in 1936 and the Double-8mm version in 1938. The H 16 was highly successful. Paillard-Bolex introduced the L 8 for the market of pocket 8 mm film cameras. With the postwar boom in home movie making, Paillard-Bolex continued to develop its 8 mm and 16 mm ranges with the H16 increasingly adopted by professional film makers. The company also made a successful range of high-end movie projectors for all amateur film making gauges. In 1952, during the golden era of 3D film, Bolex offered the Bolex Stereo: a 3D stereo kit for their H16 camera and model G projectors. Several technical changes were made to the H cameras in 1954, above all an entirely different claw drive together with a laterally inverted film gate and a 170 degrees opening angle shutter. In 1956, the first H16 reflex viewfinder model was brought out. In reaction to the upcoming use of heavier varifocal or zoom lenses and the bigger synchronous electric motors attached to the body Paillard gave it a big rectangular base, with three tapped bushings replacing the original single-tap “button” base in 1963 and soon afterward a protruding 1-to-1 shaft for the ESM motor. A saddle for a 400-ft. film magazine finally allowed the H 16 to be used like professional synch-sound cameras. In 1965, Kodak introduced the Super 8 mm format. Paillard Bolex was slow to introduce a Super 8 camera although they quickly modified the 18-5 Auto 8 mm projector for Super 8 as the 18-5 L. At about this time(1966), the Bolex 16 Pro Camera was introduced to compete with the Arriflex 16 BL camera, as a technically advanced professional camera more suited for television use than the H16. Nevertheless, the H 16 Standard camera was made until the last days of 1969. The H 16 and H 8 standard models afford the rackover critical focusing feature that had been first introduced with the Bell & Howell Standard