Feininger was by training an architect who was unable to support himself in his profession and so began doing architectural photography. By the end of the 30 minute interview and a visual sampling of his work one can see the obvious connections with engineering. Feininger seems like a person who was very precise in his thinking and his work. He is able to speak quite clearly and directly about his intention and motivation. He knew the science of photography and worked with his equipment to achieve specific results. He even built his own cameras.