🇺🇸 CIA
This CIA document from 1950 provides detailed instructions for photographing unidentified flying objects. It recommends using fast film like Tri-X and shutter speeds faster than 1/100 of a second for moving objects. It also advises against moving the camera during exposure and taking multiple photos of the same object, including elements of the ground for context. If the UFO is close, changing positions on the ground by 40 to 60 feet is suggested to establish a baseline for technical analysis. For distant objects, staying in one place and continuing to take photos is advised, though moving a short distance in a car can also be helpful.
Additionally, the document suggests taking 360-degree panoramic photos after the UFO session to capture the surrounding environment, which is valuable for analysis. It emphasizes the importance of preserving the original negative and, if possible, making a copy for study. These guidelines reflect a methodical and scientific approach to collecting visual evidence of unexplained aerial phenomena.