This was a particularly memorable photograph for me because it was minus 45 degrees Fahrenheit, and the arctic wolf’s breath froze as soon as it was exhaled. I had boots rated to minus 40, and my toes were freezing. Painful, actually. I wondered how animals like this survive such temperatures. This is the experience that made me purchase boots rated at minus 100! Since then, my toes have never been cold when shooting in winter. I took this picture in northern Canada, and I was shooting film in the 90’s. My Mamiya RZ 67 worked fine -- to my surprise -- but with 120 and 220 film, you had to lick the paper adhesive at the end of the roll to prevent it from unraveling and exposing the film. In this kind of cold, the glue lost its adhesive strength. I had to use a rubber band to secure each roll. My settings weren’t recorded, but they were probably 1/400 (the fastest shutter speed on this camera), f/5.6, and I always shot wildlife with Fujichrome Provia 100.