Just-Cheney Insulated Dew Shields?
Posted 06 November 2013 - 08:31 PM
If they are not still in business, what are the best alternatives? I want a flexible, effective dew shield for my 140mm refractor.
My refractor has a dew shield, of course, but I want to supplement it.
Posted 06 November 2013 - 10:57 PM
Posted 07 November 2013 - 01:19 PM
Posted 07 November 2013 - 01:59 PM
2. Black felt
3. Krylon or your favorite high strength adhesive (avoid stick on felt as it will eventually come loose)
5. Foam rubber pieces.
You can also use black tape to cover the edges but it's not required (if you do so, cover the edges before you stick on the felt as the tape doesn't adhere too well to felt).
I've constructed 4 of these and each time it takes less than an hour. Typically, I would make a cutout for the dovetail and slide the dewshield further down the tube. The last time I did it differently and I think this is the better design as you don't have to fiddle with it to prevent it from cutting into the light path.