Jump to content

  •  

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.

Photo

Dew me right, right now...

  • Please log in to reply
16 replies to this topic

#1 Danoglide63

Danoglide63

    Mariner 2

  • -----
  • topic starter
  • Posts: 287
  • Joined: 30 Nov 2017
  • Loc: 28027

Posted 23 September 2020 - 04:32 PM

Hello everybody,

 

Two nights ago I was camping in a bottom beside a river. About 10:00pm I noticed more moisture all over me and my guide scope than I’ve ever encountered before. Guess it’s time to get something to handle this. I’ve seen the zappers and dew nots and what nots advertised but what are you recommending to me based on your experiences? My budget is not carte blanc, keep me middle price range please. My telescope is a 150 mm Mak-Newton, the guide scope is a 60 mm Solomark and the finder scope is an 8x50 RACI.

 

Thanks!

Dano



#2 luxo II

luxo II

    Vanguard

  • -----
  • Posts: 2,483
  • Joined: 13 Jan 2017
  • Loc: Sydney, Australia

Posted 23 September 2020 - 04:43 PM

That would have to be about the worst possible location ... next time find a higher drier location away from the water and ideally a rocky ridge...

Most attractive camping sites are dew central...

Edited by luxo II, 23 September 2020 - 04:45 PM.

  • Miranda2525 and Danoglide63 like this

#3 Napp

Napp

    Mercury-Atlas

  • *****
  • Posts: 2,554
  • Joined: 26 Jul 2015
  • Loc: Florida, USA

Posted 23 September 2020 - 04:48 PM

First you need a dew shield.  The good news is you can make your own for cheap.  Closed cell foam works well.  As to dew heaters and controllers the prices are very similar.  You can shop around based on price.  Astrozap, Dew-Not, Kendrick and R-Sky make heaters and controllers.  You can make your own heaters and a controller. Check the DewBuster website for guidance on making dew heaters: https://www.dewbuster.com/default.html

 

Do a google search on DIY dew heater controller.  There are many approaches.  I built one using  http://www.dslrmodif...Controller.html


Edited by Napp, 23 September 2020 - 04:51 PM.

  • Danoglide63 and Dynan like this

#4 rkinnett

rkinnett

    Viking 1

  • *****
  • Posts: 545
  • Joined: 08 Aug 2018
  • Loc: La Crescenta, CA

Posted 23 September 2020 - 05:40 PM

Do a google search on DIY dew heater controller.  There are many approaches.  I built one using  http://www.dslrmodif...Controller.html

Hey nice design!  Here's mine:  https://www.cloudyni...ter-controller/


  • Danoglide63 and GeoffC47 like this

#5 Napp

Napp

    Mercury-Atlas

  • *****
  • Posts: 2,554
  • Joined: 26 Jul 2015
  • Loc: Florida, USA

Posted 23 September 2020 - 06:01 PM

Hey nice design!  Here's mine:  https://www.cloudyni...ter-controller/

That's a nice design you have!  I can't take credit for the design of mine.  I just followed Gary Honis's design. grin.gif


  • Danoglide63 likes this

#6 Linwood

Linwood

    Viking 1

  • -----
  • Posts: 821
  • Joined: 09 Jul 2020
  • Loc: Ft Myers, Florida, USA

Posted 23 September 2020 - 06:39 PM

Depends on how cheap you want to go.  I was originally just going to get dew strips and plug them in on full, but I stumbled across the Pegasus Pocket Powerbox Advanced (there's a normal and ultimate as well, with more or less). I just attached it to the mount, fed it with a good power adapter, and now run everything through it -- power, USB, dew heaters.  It has a temp/humidity sensor and controls the dew strips, which is really more luxury than necessity -- but I needed something to power them anyway.  

 

It's worth considering all your wiring if you are going to do dew strips, see if it's an opportunity to clean up everything not just add two more. 


  • Danoglide63 likes this

#7 HunterofPhotons

HunterofPhotons

    Apollo

  • *----
  • Posts: 1,487
  • Joined: 26 Apr 2008
  • Loc: Rhode Island, USA

Posted 24 September 2020 - 10:01 AM

Dano,

Wow, was this intended to be an '80s flashback or were you referencing a cover version?

 

dan k.



#8 Danoglide63

Danoglide63

    Mariner 2

  • -----
  • topic starter
  • Posts: 287
  • Joined: 30 Nov 2017
  • Loc: 28027

Posted 24 September 2020 - 11:03 AM

Dano,

Wow, was this intended to be an '80s flashback or were you referencing a cover version?

 

dan k.

Ha ha...a little James Taylor.



#9 Danoglide63

Danoglide63

    Mariner 2

  • -----
  • topic starter
  • Posts: 287
  • Joined: 30 Nov 2017
  • Loc: 28027

Posted 24 September 2020 - 11:12 AM

How about these I see on Amazon?   

  https://www.amazon.c...00963748&sr=8-3

https://www.amazon.c...00963847&sr=8-4

 

I've seen quite a few DIY's but not a ET brain anymore.

 

Thanks,

Dano



#10 Napp

Napp

    Mercury-Atlas

  • *****
  • Posts: 2,554
  • Joined: 26 Jul 2015
  • Loc: Florida, USA

Posted 24 September 2020 - 11:24 AM

Unless my math is wrong both are too short.  Measure the circumference of the scope tube select the correct length.  At the least: 150mm x 3.1416 = 471mm  The outer tube will add to that.  Check AstroZap, Dew-Not, Kendrick or R-Sky.


Edited by Napp, 24 September 2020 - 11:25 AM.

  • Danoglide63 likes this

#11 ryanha

ryanha

    Mariner 2

  • -----
  • Posts: 248
  • Joined: 05 Aug 2020

Posted 24 September 2020 - 11:49 AM

I read an article that said that you could also try setting up under an umbrella (Sky and Telescope). 

 

Interestingly a lot of the heat radiates directly to the sky/space so at night being under an umbrella will actually get you several degrees of warmth.  Of course you have to take care where you are pointing your scope :)

 

--Ryan


  • Danoglide63 likes this

#12 Linwood

Linwood

    Viking 1

  • -----
  • Posts: 821
  • Joined: 09 Jul 2020
  • Loc: Ft Myers, Florida, USA

Posted 24 September 2020 - 11:53 AM

Unless my math is wrong both are too short.  Measure the circumference of the scope tube select the correct length.  At the least: 150mm x 3.1416 = 471mm  The outer tube will add to that.  Check AstroZap, Dew-Not, Kendrick or R-Sky.

Yeah, be careful, I found some advertise based on strip length, and some advertise based on diameter of the scope (and none of the later seemed to distinguish scope from outer diameter, e.g. a 11" might be 12-12.5" which turns into another 3-5" of length).  Usually somewhere on their site or ad there's explanation.


  • Danoglide63 likes this

#13 Miranda2525

Miranda2525

    Vanguard

  • *****
  • Posts: 2,485
  • Joined: 12 Jul 2016

Posted 24 September 2020 - 11:55 AM

Hello everybody,

 

Two nights ago I was camping in a bottom beside a river. About 10:00pm I noticed more moisture all over me and my guide scope than I’ve ever encountered before.

There's your answer.



#14 Danoglide63

Danoglide63

    Mariner 2

  • -----
  • topic starter
  • Posts: 287
  • Joined: 30 Nov 2017
  • Loc: 28027

Posted 24 September 2020 - 12:54 PM

Unless my math is wrong both are too short.  Measure the circumference of the scope tube select the correct length.  At the least: 150mm x 3.1416 = 471mm  The outer tube will add to that.  Check AstroZap, Dew-Not, Kendrick or R-Sky.

My bad...I was thinking about for the guide scope. It’s 60mm. 



#15 Danoglide63

Danoglide63

    Mariner 2

  • -----
  • topic starter
  • Posts: 287
  • Joined: 30 Nov 2017
  • Loc: 28027

Posted 24 September 2020 - 12:55 PM

There's your answer.

Stay away from soggy bottoms?



#16 Linwood

Linwood

    Viking 1

  • -----
  • Posts: 821
  • Joined: 09 Jul 2020
  • Loc: Ft Myers, Florida, USA

Posted 24 September 2020 - 12:58 PM

Stay away from soggy bottoms?

It also reduces the frequency with which snakes crawling up the tripod screw up your guiding.


  • Danoglide63 likes this

#17 Napp

Napp

    Mercury-Atlas

  • *****
  • Posts: 2,554
  • Joined: 26 Jul 2015
  • Loc: Florida, USA

Posted 24 September 2020 - 01:14 PM

My bad...I was thinking about for the guide scope. It’s 60mm. 

I would use the same type of dew heater as used for the scope.  They would be controlled by the same controller and powered by the same power source.  No point having more different batteries or being more complex than necessary.


Edited by Napp, 24 September 2020 - 01:15 PM.

  • Danoglide63 likes this


CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.


Recent Topics






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics