Robculm Posted September 6, 2021 Share Posted September 6, 2021 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! 1 5 Link to comment Share on other sites More sharing options...
City9Town0 Posted September 6, 2021 Share Posted September 6, 2021 I've got one of those shields!!!!! I reckon that there will be a few out there! Link to comment Share on other sites More sharing options...
wimvb Posted September 6, 2021 Share Posted September 6, 2021 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. Link to comment Share on other sites More sharing options...
callisto Posted September 6, 2021 Share Posted September 6, 2021 Beauty is in the eye of the beholder 😉 Link to comment Share on other sites More sharing options...
Snoani Posted September 6, 2021 Share Posted September 6, 2021 If it does the job, not many people are going to see it in the dark. 1 Link to comment Share on other sites More sharing options...
Ibbo! Posted September 6, 2021 Share Posted September 6, 2021 Not a dew shield but ... 3 Link to comment Share on other sites More sharing options...
callisto Posted September 6, 2021 Share Posted September 6, 2021 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 1 Link to comment Share on other sites More sharing options...
CCD-Freak Posted September 6, 2021 Share Posted September 6, 2021 (edited) "Resistance is futile" 🤪 I saw this on the web.....I just could not resist. Edited September 6, 2021 by CCD-Freak 3 Link to comment Share on other sites More sharing options...
Robculm Posted September 6, 2021 Author Share Posted September 6, 2021 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? Link to comment Share on other sites More sharing options...
Ibbo! Posted September 6, 2021 Share Posted September 6, 2021 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. Link to comment Share on other sites More sharing options...
JonCarleton Posted September 6, 2021 Share Posted September 6, 2021 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. 2 Link to comment Share on other sites More sharing options...
Kimboman Posted September 6, 2021 Share Posted September 6, 2021 great its practical and who can see it in the dark?? Link to comment Share on other sites More sharing options...
Robculm Posted September 7, 2021 Author Share Posted September 7, 2021 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!). 3 Link to comment Share on other sites More sharing options...
Richard_ Posted September 7, 2021 Share Posted September 7, 2021 Kinda reminds me of something... 😁 Link to comment Share on other sites More sharing options...
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