Pierre Angénieux

Pierre Angénieux (French pronunciation: ​[pjɛːʁ ɑ̃.ʒe.njø]) (14 July 1907 in Saint-Héand – 26 June 1998) was a French engineer and optician, one of the inventors of the modern zoom lenses, and famous for introducing the Angénieux retrofocus.

Angénieux graduated from the École nationale supérieure d'arts et métiers in 1928, and from the École supérieure d'optique the next year. He was a student of Henri Chrétien.

After working for Pathé, Angénieux founded a company specialising in cinema equipment in 1935, les établissements Pierre Angénieux. He started using Geometric optics rather than Physical optics in the design of his lenses, as Carl Zeiss and Ernst Abbe did, and developed computing methods decreasing the time needed to design a lens by an order of magnitude.

In 1950, Angénieux introduced the Angénieux retrofocus, which allowed mounting wide-angle lenses on Single-lens reflex cameras.

In 1953, Angénieux designed the fastest lens of the time, reaching f/0.95. The design was used in the Bell & Howell 70 series cameras for 35 years.–

In 1956, Angénieux designed a constant aperture 17-68mm zoom lens, and a 12-120mm in 1958.

Angénieux' company provided NASA with photographic equipment used in the Ranger program, Project Gemini, Apollo program, Apollo-Soyuz Test Project and the Space Shuttle program. Notably, the first high-resolution photographs of the Moon, by Ranger 7, were made with a 25 mm f/0.95 lens.

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