Has anyone else had this problem?
Is there any simple way to combat this other than using an airtight bag and letting it reach the outside temperature inside it?
I dont know what camera you have or where you were but I use large silicon gel bags in my case. Or as someone else suggested to me a while ago, strap a couple of those on the camera itself. Also, not to let camera go from one extreme temperature to another too quickly. As I have a d40x it's all plastic, (incl.lens), it's the only advantage I can think of in cold weather, it's doesnt collect condensation as quickly or severly as metal.