Oh My !

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Don Quixote
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Oh My !

#1

Post by Don Quixote »


After being stored in my garage so as to maintain ambient and lesson acclimation time I discovered this when I set up my Evostar 100ED.
20200301_120829.jpg

It appears that condensation has formed between the doublet.

Crappola !

I am gently warming the lens cell with hand warmers rubber banded to the cell.

I have also gently warmed the tube with the focuser opened and pointed up. I hope the moisture can escape.

Any similar experiences?
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Bigzmey United States of America
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Re: Oh My !

#2

Post by Bigzmey »


I had condensation formed on the inner surface of my 6" achro objective on a couple of occasions.

Venting it with focuser up took care of the issue with no apparent side effects.

Hopefully your scope will be fine to Mark.
Scopes: Stellarvue: SV102ED; Celestron: 9.25" EdgeHD, 8" SCT, 150ST, Onyx 80ED; iOptron: Hankmeister 6" Mak; SW: 7" Mak; Meade: 80ST.
Mounts: SW: SkyTee2, AzGTi; iOptron: AZMP; ES: Twilight I; Bresser: EXOS2; UA: MicroStar.
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Observing: DSOs: 3106 (Completed: Messier, Herschel 1, 2, 3. In progress: H2,500: 2180, S110: 77). Doubles: 2382, Comets: 34, Asteroids: 255
Don Quixote
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Re: Oh My !

#3

Post by Don Quixote »


Well...patience, a little warmth, and a little more patience did the trick. 😊
20200301_123354.jpg
All seems well. No residue.

Thank you Andrey.

It was disconcerting to say the least. I am now rethinking my storage method for this scope.
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Juno16 United States of America
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Re: Oh My !

#4

Post by Juno16 »


Very good news indeed! Ill bet that you are relieved!
Jim

Scopes: Explore Scientific ED102 APO, Sharpstar 61 EDPH II APO, Samyang 135 F2 (still on the Nikon).
Mount: Skywatcher HEQ5 Pro with Rowan Belt Mod
Stuff: ASI EAF Focus Motor (x2), Orion 50mm Guide Scope, ZWO 30 mm Guide Scope, ASI 220mm min, ASI 120mm mini, Stellarview 0.8 FR/FF, Sharpstar 0.8 FR/FF, Mele Overloock 3C.
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Thefatkitty Canada
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Re: Oh My !

#5

Post by Thefatkitty »


Phew! :D Good to hear/see; maybe the basement?
Mark

"The Hankmeister" Celestron 8SE, orange tube Vixen made C80, CG4 & AZ-EQ5 mounts.
Too much Towa glass/mirrors.

H/A - PST stage 2 mod with a Baader 90mm ERF on a Celestron XLT 102 (thanks Mike!)
Ca-K - W/O 61mm, Antares 1.6 barlow, Baader 3.8 OD and Ca-K filters with a ZWO ASI174mm.
W/L - C80-HD with Baader 5.0 & 3.8 Solar film, Solar Continuum 7.5nm and UV/IR filters with a Canon EOS 550D.

Oh yeah, and Solar Cycle 25 :D
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helicon United States of America
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Re: Oh My !

#6

Post by helicon »


Good news indeed. Sometimes I leave my doublet out all night with the cover cap on covered by a tarp. Taking down the 152 at midnight can be a chore. So far no problems but I try to always bring it in on dewy/chilly nights.
-Michael
Refractors: ES AR152 f/6.5 Achromat on Twilight II, Celestron 102mm XLT f/9.8 on Celestron Heavy Duty Alt Az mount, KOWA 90mm spotting scope
Binoculars: Celestron SkyMaster 15x70, Bushnell 10x50
Eyepieces: Various, GSO Superview, 9mm Plossl, Celestron 25mm Plossl
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Naked Eye: Two Eyeballs
Latitude: 48.7229° N
Don Quixote
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Re: Oh My !

#7

Post by Don Quixote »


This had me going for sure.
I was contemplating the disassembly of the lens cell. 😱
I am much relieved.
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Re: Oh My !

#8

Post by Shabadoo »


Yikes!!
Glad she's ok.
Jeff
Dad Joke King (ask my kids); Cereal killer
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Lady Fraktor Slovakia
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Re: Oh My !

#9

Post by Lady Fraktor »


Doublets are easy to dismantle and replace.
If you are leaving the telescope out then use a stainless steel tea ball filled with desiccant in the focuser, this will prevent the condensation build up.
If in a case put a container of desiccant into it as well.

This one is 2.6" in diameter but there are many sizes available.
https://www.walmart.com/ip/Kitchen-Home ... e/51506031
See Far Sticks: Antares Elita 103/1575, AOM FLT 105/1000, Bresser BV 127/1200, Nočný stopár 152/1200, Vyrobené doma 70/700, Stellarvue NHNG DX 80/552, TAL RS100/1000, Vixen SD115s/885
EQ: TAL MT-1, Vixen SXP, AXJ, AXD
Az/Alt: AYO Digi II/ Argo Navis, Stellarvue M2C/ Argo Navis
Tripods: Berlebach Planet (2), Uni 28 Astro, Report 372, TAL factory maple, Vixen ASG-CB90, Vixen AXD-TR102
Diagonals: Astro-Physics, Baader Amici, Baader Herschel, iStar Blue, Stellarvue DX, Takahashi prism, TAL, Vixen flip mirror
Eyepieces: Antares to Zeiss
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Don Quixote
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Re: Oh My !

#10

Post by Don Quixote »


Lady Fraktor wrote: Mon Mar 02, 2020 7:41 am Doublets are easy to dismantle and replace.
If you are leaving the telescope out then use a stainless steel tea ball filled with desiccant in the focuser, this will prevent the condensation build up.
If in a case put a container of desiccant into it as well.

This one is 2.6" in diameter but there are many sizes available.
https://www.walmart.com/ip/Kitchen-Home ... e/51506031
Thank you Gabby.
I have disassembled the doublet several times on lesser kit. Still...I do not relish the task if I may avoid it. 😊
Great idea with the Tea Strainers!
This will be my practice going forward.
Thank you.
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Lady Fraktor Slovakia
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Re: Oh My !

#11

Post by Lady Fraktor »


If you cannot find a ball that fits inside your focuser, a 35mm film canister can have multiple holes put into it and filled with desiccant, it will fit perfectly into a 1.25" eyepiece adapter.
See Far Sticks: Antares Elita 103/1575, AOM FLT 105/1000, Bresser BV 127/1200, Nočný stopár 152/1200, Vyrobené doma 70/700, Stellarvue NHNG DX 80/552, TAL RS100/1000, Vixen SD115s/885
EQ: TAL MT-1, Vixen SXP, AXJ, AXD
Az/Alt: AYO Digi II/ Argo Navis, Stellarvue M2C/ Argo Navis
Tripods: Berlebach Planet (2), Uni 28 Astro, Report 372, TAL factory maple, Vixen ASG-CB90, Vixen AXD-TR102
Diagonals: Astro-Physics, Baader Amici, Baader Herschel, iStar Blue, Stellarvue DX, Takahashi prism, TAL, Vixen flip mirror
Eyepieces: Antares to Zeiss
The only culture I have is from yogurt
My day was going well until... people
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Burris
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Re: Oh My !

#12

Post by Burris »


All good advice. I put cotton T-shirt material in the film canister then add desiccant and close the makeshift bag with cotton thread. Sometimes the desiccant is a bit dusty and I want to eliminate any possibility of dust getting into my scope. That's just me, I over do everything! Lol! Bill
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