• UPDATE



    The forum will be moving to a new domain in the near future (canonrumorsforum.com). I have turned off "read-only", but I will only leave the two forum nodes you see active for the time being.

    I don't know at this time how quickly the change will happen, but that will move at a good pace I am sure.

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Is anyone aware of what the operating temperatures would be for a situation where the Mark III would be taken to an elevation of almost 4 km (2.5 mi) and used straight out of the bag?
Example:
July, mountain top, sunrise, 4 km / 2.5 mi above sea level