From: bugbear on 26 May 2010 09:53 Floyd L. Davidson wrote: > bugbear <bugbear(a)trim_papermule.co.uk_trim> wrote: >> Michael Black wrote: >> >>> What about the mechanical parts? If they are lubricated, the lubrication >>> may freeze, and the camera won't work. >> One of the possible "preps" for super cold is to remove >> all lubricant, for exactly that reason. > > That was indeed the way it was done... *decades* ago, but > not today. We have synthetic oils that are still functional > at -60F. > >> Some mechanisms don't work at their BEST with no lubricant, >> but they work BETTER than they would glued together with frozen lubricant! > > That hasn't really been a problem for maybe 3 decades now. > I guess my reference material is old :-) BugBear
From: Wolfgang Weisselberg on 30 May 2010 11:52 Michael Black <et472(a)ncf.ca> wrote: > Don't forget the time Shackleton's Endurance got trapped in the ice. They > used photographic plates, Among other things like film. > and somehow managed to keep all or most of them > throughout the ordeal, They *smashed* all but the best 100 or so plates on abandoning the sinking Endurance (fetching the plates out of a meter of seawater first). > The photos are actually > terribly interesting in themselves, but it's amazing they bothered > to keep them along under such circumstances. The photogapher was a dedicated professional and photos mean income. -Wolfgang
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