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Old 17-02-2008, 12:14 AM
tornado33
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tornado33 is offline
 
Join Date: Jan 2005
Location: Newcastle, NSW, Australia
Posts: 4,116
Great work there. Nice neutral coloured sky backgrounds.
Id use the dew heaters. Thermal movements worry high magnification planetary imagers rather then deep sky at prime focus, and a dewed mirror is worse. I take it your secondary is the one that gets fogged. The tip is to have just enough heat to keep the dew off
Scott
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