Credit where it's dew?

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rwilkinson
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Credit where it's dew?

#1 Post by rwilkinson » Mon Oct 26, 2009 8:22 am

It doesn't take long to discover one of the problems of observing in a damp climate: condensation on your optics!
I well remember at Kelling Heath in 2008 one evening when it was so damp that the night air was filled with the sound of scores of hair-dryers, as the assembled astronomers tried to keep their objectives and eyepieces clear!

Well there is another simple solution, well described on one of our Chairman's web-pages:
http://www.deep-sky.co.uk/telescopemaking/tm16.htm

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