Quote:
Originally Posted by marc4darkskies
Interesting - thanks for the info Greg! Surprised dew hasn't bothered you that much. Dew used to cause all sorts of problems for my Tak before I put a dew heater on. On many occasions the whole observatory was dripping wet and the objective fogged over before 1:00am.
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That is the sort of dew issues I face almost nightly at Clayton. Good seeing, dark skies but bad bad dew issues. I have a heater on the secondary of the RC even in a tubed setup. It dews up. The TSA needs to have a dew heater on every night despite having a heater dew shield. Dewy sites need good dew amelioration.