Building a 16x20 Camera with a Giant Aerial Lens and Cardboard | PetaPixel
Development of multi‐lens aerial cameras in the UK for topographic mapping during the 1920s and 1930s - Petrie - 2018 - The Photogrammetric Record - Wiley Online Library
Rank Taylor Hobson 12" f4 British Anastigmat Aerial Prime Lens -Read, - Victory Camera