CIA File of the Day
BIRD CAMERA DEVELOPMENT
A 12 May 1976 memorandum on bird camera development. The final camera design, Camera No. 3, uses a Minox lens and weighs 35 grams including timer, film, and batteries, or 39.5 grams with the harness. It had undergone ground tests, including vibration, and was flown six times during tests in Oklahoma. Ultrathin-base film allowed more pictures per roll.
Courtesy of the CIA FOIA Electronic Reading Room. Official page: CIA FOIA Electronic Reading Room. Document PDF: cia.gov reading room PDF. Copy: Internet Archive.