Edgar W. Weinberger, 66, a retired Air Force photographer and a founder and first president of the Association of Federal Photographers, died at Fairfax Hospital Thursday following a stroke.

Mr. Weinberger was born in New York City and grew up there. He began a career in photography and went to work for the old Army Air Corps during World War II. He moved to the Washington area in 1941.

He was a photographer and later head of a photographic laboratory at the Department of the Air Force. He retired in 1975.

Mr. Weinberger helped found the Association of Federal Photographers in 1957. He had served as a consultant to the organization, which is aimed at improving the skills of government photographers, since 1973.

Mr. Weinberger and his family made their home in Falls Church beginning in 1950. He was a member of the Jefferson Village Citizens Association there and of the executive committee of Boy Scout Troop 660. He also belonged to the Potomac Society of Stereo Photographers.

Survivors include his wife, Helen O., of Falls Church; a son, David, of Park Forest, Ill.; a sister, Rhoda Spencer of Atlanta; two stepsisters, Edith Weissman of Stamford, Conn., and Rose Churchill of Philadelphia, and a stepbrother, Morris (Bud) Chrystol of New York City. p

The family suggests that expressions of sympathy be in the form of contributions to the Boy Scouts of America, to the United Nations Association of the United States, 316 Pennsylvania Ave. SE. Washington, or to a charity of one's choice.