However, I had so-so results with dew heater straps for quite a long while. I just put that down to our extremely heavy dew down here in Possum Swamp. Luckily, many a long year ago somebody who knows a lot about the subject, Mr. Dew Buster himself, Ron Keating, schooled me on the...
I’ve not had much luck with the little power banks, but mine is 1/4th the capacity yours is rated at, and those ratings are pretty optimistic. My 5000mAh pack ran 2 heaters for about 15 to 20 minutes, pretty much instantly gave up on that idea. Only thing you can do is try it,...
Closed the observatory up again, turned on a 1500W oil heater and 3 dew straps, and the corrector plate got fixed in 10 minutes. However the mirror was still 99% fogged up by then. I tried pointing the scope both sides to the oil heater, moved the 3 dew straps to the mirror side,...