S66-33728 (10 May 1966) --- Astronaut Thomas P. Stafford, command pilot of the Gemini-9 spaceflight, checks the 16mm Mauer camera which will be used in space. The camera will record and document the exterior of the spacecraft and the Agena target vehicle in the docked configuration during the Gemini-9/Agena rendezvous and docking mission. Photo credit: NASA