I will be shooting in zero degree weather for 3 weeks in mountains elevated 15 - 20 thousand feet on the 7d and my camera operator will be on the 60d.
There will be issues consisting of condensation due to the cold and warmth indoors, and battery issues.
Will there be issues with the elevation?
As for audio, what is a good mic to use? Will the Rode video mic and the video mic pro work?
Also will a Glidecam work or will the oil on the bearings freeze?
Lastly, what are your best tips on shooting in cold weather?