Originally posted by SharkyCA I saw this thread and noticed a lot of different comments on "Humidity & Condensation" made me wonder if I am using a "weather sealed" camera such as the K-70 with weather sealed lenses and they are supposed to keep moisture & dust out of my equipment then is "condensation" a problem? What is weather sealing on a camera?
Yes, condensation would still be a problem. Don't underestimate the power of humidity...over time, there's very little that "weather sealing" can do against air. The internals of the lens and camera can still absorb ambient air, especially with a lens change.
The guy at my local shop said he just keeps his camera bag closed until it warms up enough. The air in the bag retains the same ambient conditions as when it was last opened, presumably that would be "outside". I've done this for the past few months and can attest that it works (so far), but if you're worried about it just wrap the camera bag in a plastic grocery bag. Just note that when coming in from -30C, it can take several hours of sitting in the bag to warm up to something approaching room temperature. If it's chill to the touch, it's too cold.