dark star Posted December 5, 2014 Share Posted December 5, 2014 I sent an e-mail to Spectraglass in Scotland to ask the price of a 20 inch glass blank for making a telescope mirror around a month ago. I know a couple of people on here have got blanks from them. I would be interested to how much people have paid and how long it took to get a reply. I have had an acknowledgement e-mail straight away, which I assume is automatic, but nothing else.Also, what was the exact glass type people ordered? I think I have figured out the correct type on their website, but it would be good to be sure.David Link to comment Share on other sites More sharing options...
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