Entry for the ugliest dew shield?

[Robculm]

So I've discovered what this dew business is all about! 😭

What should have been a good 4 - 5h of data ended up as around 1h before mysterious halos appear, expanding in to well, nothing much at all.

Looks clear again tonight, no time to order in a professional one, not even time to order a black camping mat on Amazon, so here's what I've cobbled together this evening! It's lined with black paper, so hopefully will work somewhat better than it looks!

 

 

 

[City9Town0]

I've got one of those shields!!!!! I reckon that there will be a few out there!

[wimvb]

Nothing like the one I made. I used gray duct tape instead 😉

Btw, the finder scope may have stray light entering, being white on the inside.

[callisto]

Beauty is in the eye of the beholder 😉

[Snoani]

If it does the job, not many people are going to see it in the dark.  

[Ibbo!]

Not a dew shield but ...

[callisto]

4 minutes ago, Ibbo! said:

Not a dew shield but

I had to the same thing with our dog when she had a infected ear

[CCD-Freak]

"Resistance is futile"  🤪  

I saw this on the web.....I just could not resist.

 

 

Edited September 6, 2021 by CCD-Freak

[Robculm]

Ha, so far so good, but we're only 10 shots in ...

Not sure it's doing much for my guiding, even on such a still night!

I guess there are particular times of year where the dew is more troublesome? I didn't have a set up that leant itself to long sessions until now, but can't say I noticed any problems with dew in the winter, even when the outside of the tube, well pretty much everything, was soaking wet at the end of a session.

Is it particular to this time of year when it's a little warmer but cooling in the night?

[Ibbo!]

To be fair mine usually ends up as a bit of corrugated cardboard scrounged from the bin held together with duct tape cos I forgot the dew band or proper dew shield.

[JonCarleton]

I had a toilet paper cardboard center tube on my guide scope more than a few times.  Alas no picture.  Once the dew soaks into it, the "device" becomes a one-time use item.  Fortunately, I have a ready supply of replacements.  

[Kimboman]

great its practical and who can see it in the dark??

[Robculm]

Well indeed! Good news is that despite appearances it worked a treat & I managed to get >4h of data 😁.

Scary moment after I changed the camera battery & did a quick re-focus mid way through. Had overlooked that the target was across the meridian & the dew shield crashed in to the fence while travelling back to it!

Anyway, together with the hour or so from Friday night, total ~5h of data (300s exposures), here's the preliminary result.

Haven't added calibration frames yet & it's just a very basic edit (I think maybe I was a little heavy handed on the colour saturation slider though!).

[Richard_]

Kinda reminds me of something... 😁