How to deal with dew ?
Posted 24 April 2005 - 11:29 AM
A dew heater heater should work properly but I'm open to other ideas.
Posted 24 April 2005 - 12:14 PM
Posted 24 April 2005 - 12:33 PM
I guess you could try making a slotted eyecup that would also allow the moist hot air to flow away from the eyepiece lens.
Posted 24 April 2005 - 01:26 PM
I have a 12V "travelling" hair-drier that I use for eyepieces and unit-power finders. (Same thing is twice the price if it's sold as a "dew gun".)
Posted 24 April 2005 - 07:01 PM
So as every astronomer knows, when you have a problem, throw money into it. Therefore, I got the Hendricks heaters and controller mentioned above, plus the smaller of the two power packs sold by Orion. A lot of money, but as my maps, laptop, tripods, tables and everything else are dripping wet, my binocular lenses are clear and dry all night long.
Posted 25 April 2005 - 08:45 AM
Posted 28 April 2005 - 07:55 PM
When not in use, always cap.
This from a guy whose club built their observatory in a watershed!!! But it's dark there and the rent was cheap, not to mention probably the best weather in the province.