I’ve just finally decided to upgrade after 20 years with a 1960s Selsi 60mm refractor and a (recently acquired) Monolux 4380.
I went with Celestron CGX / Edgehd 9.25 with astrophotography as an end result goal along with visual.(still need to get a guidescope but that’s a whole different topic)
I’ve borrowed friends 5 and 6” SCTs before and never had an issue with dew in my short viewing sessions over the years, but have been advised that now I need to worry about it.
The question is what to get, and do I really need it but I think the advice was pretty sound.
There is strip heaters, heated dew shields, just dew shields, heated eyepiece strips, etc...
Enough stuff out there to go crazy if you wanted to.
For detail specific to my use:
I’m in Southern California at 1400’ elevation in the foothills north of Los Angeles.
No snow, lowest temp is every couple of years it may get high 30s F. then go up to 60 daytime for a couple days. Summer can get about 95 to rare 105 day and drop to 80 that evening.
Still in the city, but just a couple blocks from where the mountains really begin.
We do suffer from orthographic lift if that is a consideration for the type of system I get.
Power drain isn't an issue. I have several huge 18650 battery banks I’ve made from scraped laptop battery packs and set up for 12 volts and can regulate any of them from .25 to 5 amps. Any one of these could power the mount alone for a couple days and I’d just make one for dedicated use for the dew application.
I just want to “Dew” this right the first time - sorry couldn’t help it, with getting good stuff, but also don’t want to waste money on things I’ll never need.
Any advice from the experts here would be greatly appreciated.
Edited by scrufy, 24 August 2019 - 08:26 PM.