Quote:
Originally Posted by Atmos
It's an interesting issue that you've dealt with, something that affects most out in rural territory with more people using wood fire heating than in the city.
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well I hope it is dealt with Colin
. Obviously, nobody has been using their fires lately, but the performance of the scope has been a bit suss for a while now, so it
could have been stuff carried in smoke last winter. Out this way, most people have wood fires for heating - not ideal health wise, but real cheap when they can get free wood.
Quote:
Originally Posted by glend
Ray was it on both Newts? I get airborne gum sap this time of year, from the bush reserve behind my place. Normally Bintel UHC cleaning fluid, or acetone takes it off. I assume you checked the secondary mirror as well. Do you keep the scopes capped when not in use?
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haven't looked at the other scope Glen, but it spends almost all of it's time indoors these days - worth a look though. Both mirrors needed cleaning and I was surprised that acetone did not work - maybe I didn't leave it on for long enough. The scope is capped when not in use, but it's open to the elements on most nights when the sky is clear - astro imaging gear leads a hard life.