Hey TPF, I'm going to visit my brother up in Vermont this weekend and I have a few questions. It'll be around 0 degrees F. I'm a little worried about my camera getting too cold to function and I'm also worried about condensation. I've heard to put the camera in a ziplock bag before going inside so should I do that? I've also heard to not change lenses outside or inside until the camera has had plenty of time to warm up so is that true too? I want to be able to bring my fisheye along with my regular lens but I dont know if I can change the lenses. TLDR; What should I do to deal with going from cold to hot? How do I stop condensation? Can I switch lenses in below freezing temps? Thanks!