Bringing scope in from cold

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Re: Bringing scope in from cold


Post by notFritzArgelander » Sun Nov 03, 2019 3:31 am

John Baars wrote:
Sat Nov 02, 2019 10:55 pm
Oops... :icon-surprised:
Apparently I have been doing it all wrong, the past half a century. :character-oldtimer: I bring in the telescope and wait for the lenses being dry, before capping.Takes 40 minutes or so. Luckely none of my telescopes has been complaining
Me too apparently. ;) But I think too there are devils in details.
Scopes: Refractors: Orion ST80, SV ED80 A f7; Newtonians: Z12 f5; Catadioptrics: VMC110L, Intes MK66. EPs: KK Fujiyama Orthoscopics, 2x Vixen NPLs (40-6mm) and BCOs, Baader Mark IV zooms, TV Panoptics, Delos, Plossl 32-8mm. Mixed brand Masuyama/Astroplans Binoculars: Nikon Aculon 10x50, Celestron 15x70, Baader Maxbright. Mounts: Star Seeker III, Vixen Porta II, Celestron CG5, Orion Sirius EQG
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Post by stewe » Sun Nov 03, 2019 11:54 am

How about leaving dust caps on as Kathy suggested (if the lens did not become dewy already outside anyway), then using a hair dryer and dew heater bands to help the tube warm up once indoors? Then taking caps off for further drying.
And how about using a hair dryer (carefully, on a low setting and at an angle) to dry dewed up objective lenses?
Clear skies!
telescope: Celestron C9.25
mount: Celestron AVX
binoculars: Lacerta 8x42 ED
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