Harvard University. Optical Research Laboratory

• Report on a device for testing the flatness of film in the A-5 and A-7 magazines under service conditions
• Report on design and development of an automatically focusing 40-inch f/5.0 distortionless telephoto and related lenses for high altitude aerial reconnaissance
• Report on design and development of lenses for rectification of Metrogon high obliques
• Report on quantitative studies and observations of factors limiting resolution of aerial photographs
• Report on spherically symmetrical lenses and associated equipment for wide angle aerial photography