I went deep into the archives for this weeks picture. I made this image of "red" tulips outside the Terteling Library in the spring of 1971 while attending the College of Idaho. This was one of the first shots I ever made using a specialized film that Kodak developed during the Second World War for the purpose of aerial reconnaissance. It could detect the difference between real and decoy armies. I really liked the color it rendered in the leaves and blossoms of these flowers. Can you tell me what this film was called?