New lens designs were needed to function adequately at these altitudes. Dr. James Baker was one of the contributers of lens designs to function at approximately 65,000-80,000 feet. Future enhancements enabled greater quality photos from the U-2s. | New lens designs were needed to function adequately at these altitudes. Dr. James Baker was one of the contributers of lens designs to function at approximately 65,000-80,000 feet. Future enhancements enabled greater quality photos from the U-2s. |