[Profiler (Profiler)]

I was asked to-day about caring for refractor optics with respect to dew.

Interestingly, the question wasn't the usual concern about dew control whilst in the field but rather care of your refractor once you have finished and, for example, the classic back-yard observer of what to do when the scope is brought inside a house and "then" the lens fogs up.

My advice was to not straight-away pack the scope up but instead leave it in a cool room with the lens cap off for the dew to evaporate naturally and thereafter store the scope with some silica satchels. However, I was just wondering whether anyone else had a few extra pearls of wisdom to share for long-term refractor care.