One of the more interesting jobs I have had was working in a freezer at 26ºC in downtown Melbourne in the late sixties. The job entailed shredding frozen calf and pig pancreas organs for the manufacture of Insulin.
I shared digs with a fella who was travelling down to Antarctica as a photographer and Morse code operator. Radio was bad during a blizzard and quite a few messages travelled via Morse code in those days
Anyway he was wondering about the effectiveness of winterising his cameras, which were three Nikon F bodies and three lenses, 35, 55 and 105 Nikkors. The three bodies and three lenses were so he didnt have to change lenses in very bad weather and also so that at any time there could be three people using the cameras.
The upshot was that we convinced the Government body running my section to allow the government body running the Antarctic division, to use our cold rooms for tests.
We dropped the temperature 33ºC, which I think was the coldest we could get. You have to understand these were quite large workrooms with machinery for cutting and shredding inside.
The cameras that were winterised, which meant that they were cleaned and all lubricant removed and a couple of others that were literally straight off the shelf from the Nikon importer, were left inside for ½ a day to really cool down.
A special shutter-testing set-up had been arranged with the shutter tester on the outside and the cameras on the inside with a very thick piece of glass in-between.
From memory the winterised cameras worked perfectly, the normal cameras were not that far behind, maybe ¼ to ½ a stop at most slower. Manageable, but a difference nonetheless.
I know that one of those cameras worked in temperatures around 60ºC as pictures were taken in a blizzard of some penguins. The penguin pictures were of quite interesting scientific value at the time, as very little was known how they survived down there.
I dont know how long after coming back to Australia before the cameras were re-lubed, but I know one of them is still in use by my friend to this day in a working capacity.
For the Australian members, this was at CSIRO in Parkville.
Mick.