Quote:
|
Originally Posted by astro_nutt
Interesting thought!!...that would mean the mirrors could fog up outside and he'd have to wait until they clear before any viewing!!  ..unless you cover the scope with an insulator of some kind...tricky!! |
Yes, the mirrors do fog up as soon as you take the scope outside (from an air conditioned room). EP's also have the same problem. Depending on the humidity at the time it doesn't take the condensation long to clear. In answer to Ving, I don't know how long it takes for the mirror to reach the outdoor temperature, nor do I know what impact a cooler mirror in a warm evironment would have on air currents within the scope.
Cheers,
Graeme