I pulled out an old favourite to shoot with before last week's Reputation Management class at Ryerson. I packed my Nikkormat FTN because I know it would work flawlessly in the cold. I used Tri-X rated at 1600 ISO and processed in Diafine. I really have to find out how long that developer lasts. Metering was touch and go as the battery decided after three years to start to fail on me. Lucky guesses help out.