The eyepieces are uncapped and under a loose cover to keep dust
away...
How dangerous is moisture/condensation to all of this?


Hi:


The bottom line is, "never cover a scope or eyepiece that has condensation on
it.

--If there's condensation on the scope's corrector or eyepieces while you're
outside, leave the covers off, bring them in, and let the moisture evaporate
before you put the covers on.

--If there's no moisture on the corrector or your eyepieces while you are
outside, go ahead and cover 'em. Any moisture that condenses inside will be on
the covers, not on the corrector or eyepiece lenses.

Peace,
Rod Mollise
Author of _Choosing and Using a Schmidt Cassegrain Telescope_
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