Is it possible to use an AF lens in the cold and damp for long periods of time without damaging the electronics? I want to get rid of an MF lens I don't like and never use, and the only reason I can think of to keep it is for astrophotography. I was thinking of using the Sigma 20mm EX for this purpose instead, but I don't want to do it if it's going to damage the lens.
Thanks, Amita
