Hi Matt, The Material is
High
Imact
Polystyrene
Sheet or H.I.P.S.
I purchased it in a sheet about 1.37m x 73cm x 0.75mm. This then had to be cut to size. I left a overlap of about 3cm.
It's highly flexible and easy to cut with scissors.
I placed a strip of adhesive backed velcro the length of the sheet ( see photo) To secure the two ends I again used the adhesive velcro (see photo)
To mount the shield to the scope, I first wrapped a length of the one-wrap velcro, (it's double sided and sticks to itself) around the upper tube (see photo, pulled up so you can see it) and then wrap the shield around the scope with the velcro on the shield sticking to the one on the scope.
I hope I've made it clear enough.

Cheers, John.
Quote:
Originally Posted by circumpolar
astronut,
Did you make the dew shield yourself or is it a bought one?
Also, how have you attached it to the top of your scope? I need one for my 12" GS.
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