Hi Joe, You can also go to Regional Supply Co (http://www.regionalsupply.com/) and take a look at some of the thin black acrylic sheets that they have. We bought some, cut it to shape, and used velcro to hold it in place. One piece of velcro to hold the two overlapped edges together, and more to hold it to the tube. If you make it nice and long, the frost will not bother your scope at all, and it has an added advantage of screening your mirrors from low light sources. For storage, you can usually wrap it around the tube, if you cut it wide enough. If you are worried about light bouncing on the shiny plastic interior, you can "matte" it with a quick scrubbing of steel wool. Jo Quoting Joe Bauman <josephmbauman@yahoo.com>:
Thanks Patrick, I'm so discouraged I've packed it in until Spring. Hey, can you let us see 'em when you've accumulated a week or so worth of nova photos? Sounds like blog fodder! Thanks, Joe
--- On Tue, 12/1/09, Patrick Wiggins <paw@wirelessbeehive.com> wrote:
From: Patrick Wiggins <paw@wirelessbeehive.com> Subject: Re: [Utah-astronomy] Nova in this evening's sky (Pictures) To: "Utah Astronomy" <utah-astronomy@mailman.xmission.com> Date: Tuesday, December 1, 2009, 2:17 PM
On 01 Dec 2009, at 10:23, Joe Bauman wrote:
Hi Patrick, I had the same awful problem last night -- frost! Today I'm buying a little hair dryer. Also, anyone have any suggestions about what to use for a dew shield? I bought something earlier but it's too rubbery to maintain a shape. Thanks, Joe
There's always the store-bought plastic, electrically heated dew caps.
But being the cheap skate I am I made my own out of the dark colored foam material mechanics use to line the bottoms of tool box shelves. It comes in rolls. Cut to the appropriate length and sew the ends together to form a tube. The fact it's foam keeps the weight down and also seems to help with insulation.
I think I got mine at the downtown Sears (memory's fuzzy after all these years).
Good luck,
patrick _______________________________________________ Utah-Astronomy mailing list Utah-Astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Visit the Photo Gallery: http://www.slas.us/gallery2/main.php Visit the Wiki: http://www.utahastronomy.com
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