In extreme cold

This is a baby harp seal on pack ice off the coast of the Magdalen Islands in Nova Scotia, Canada. It was minus 45 degrees Fahrenheit (-42.7 Celsius); this was the coldest temperature I've ever photographed in. My group was flown here by helicopter, and we were warned to avoid 'black ice' because it was thinner and more dangerous to walk on. Everyone wore bright orange expedition suits in case we fell into the water -- we'd be easier to find. I took this with film -- the Mamiya RZ 67 and Fujichrome Provia 100 -- and unlike with digital cameras, I couldn't see the results until I got home. That meant the exposures had to be perfect. I relied on a hand held Sekonic L-558 incident meter to provide flawless exposures. I remember using a 250mm telephoto (equivalent to a 135mm in the full frame digital format). We were able to walk right up to the baby seals because they weren't afraid of us at all. In the early 90's, this picture made the cover of Petersen's Photographic Magazine.