Thread: 12" Dob Secondary Mirror Fogging HELP!!
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Old 09-06-2006, 03:49 PM
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Merlin66 (Ken)
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Join Date: Oct 2005
Location: Junortoun Vic
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The amount of heat required is next to nix ( check out some of the discussions on MAPUG) there's not enough heat to cause thermals etc.
Remember the metal telescope tube around the eyepiece will aggrevate the problem. Cork lining would be good.
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