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Old 14-05-2009, 02:00 PM
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jjjnettie (Jeanette)
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Join Date: Feb 2005
Location: Monto
Posts: 16,741
The only concern with the temp extremes is the time it take for the mirror to cool down. If it's been a hot one, it can take 2 hours or more. (you always have to let the mirror cool down to ambient regardless, minimum time is about an hour) You want to be using the scope as soon as you can, not waiting for hours.
That said, so long as the scope is well covered, and not stored where the afternoon sun can get at it, it should be ok.
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